Journals

(Corresponding author is underlined) 

2024

175. Effect of compositional undulation on the mechanical behavior of atomic-scale planar-faulted Ni-Mo-W films

Y. Park, S. Choi, K.H. Ryou, J.H. Park, W.S. Choi, W.-S. Ko, P. Choi, G.-D. Sim

Materials Science and Engineering: A 915 (2024) 147250. 

[LINK] 

 

174. Prevention of hot cracking in Ni-based superalloy via passivation layer formation during additive manufacturing

K.H. Ryou, Y. Park, H.J. Im, P. Choi

Journal of Materials Research and Technology 33 (2024) 3155-3162. 

[LINK] 

 

173. Mean-field moedlling of γ’ precipitation in additively manufactured IN738LC Ni-based superalloy

S.K. Verma, C.Jung, M.P. Agustianingrum, M.J. Anderson, P. Choi, K. Kim

Materials Characterization 217 (2024) 114315.

[LINK] 

 

172. Ferrite-enabled improvement of hydrogen embrittlement through strain partitioning in quenching and partitioning steels

K.J. Kim, S.Y. Song, G. Lee, H.-J. Kim, H.Y. Um, J.-S. Hyun, S.-P. Jung, K.H. Ryou, P. Choi, A. Zargaran, M.-G. Lee, S.S. Sohn

Materials Science and Engineering: A 913 (2024) 147008.

[LINK] 

171. Wear resistance enhancement by Cu nano-platelet in CrCoNiCu medium-entropy alloy films

Y.M. Kim, T.J. Jang, D. Chae, B. Yoo, S.-H. Oh, H. Seo, S. Nam, D. Byeon, J. Kim, B.-J. Lee, P. Choi, A. Zargaran, S.S. Sohn

Journal of Materials Research and Technology 32 (2024) 1589-1601.

[LINK] 

170. Genetic design of precipitation-hardening stainless steels for additive manufacturing

H.E. Sabzi, S.H. Lim, D. Della Crociata, R. Castellote-Alvarez, M. Simonelli, D. San-Martin, X. Hao, P. Choi, P.E.J. Rivera-Diaz-del Castillo

Acta Materialia 274 (2024) 120018.

[LINK] 

169. Impact of Hierarchical Dopant‐Induced Microstructure on Thermoelectric Properties of p‐Type Si‐Ge Alloys Revealed by Comprehensive Multi‐Scale Characterization

K. Jang, W.-S. Ko, J.-H. Son, J.-I. Jang, B. Kim, M. Vega-Parades, H. Jang, M. Allahyari, S.-H. Kim, K.H. Ryou, D. Chae, H. Park, Y.S. Jung, M.-W. Oh, C. Jung, C. Scheu, P. Choi

Advanced Functional Materials (2024) 2403785.

[LINK] 

168. Abnormal martensitic transformation and morphology induced by chemical heterogeneity in additively manufactured maraging steel

H. Noh, J. Han, K.H. Ryou, P. Choi

Scripta Materialia 253 (2024) 116313.

[LINK] 

167. Fabrication of architecturally designed steel for improving isotropy of mechanical properties using directed energy deposition

K.H. Ryou, S.H. Lim, K.H. Lim, S. Hong, G.D. Sim, S. Nambu, P. Choi

Additive Manufacturing 84 (2024) 104128.

[LINK] 

166. Direct observation of trace elements in BaTiO3 of multilayer ceramic capacitors using atom probe tomography

K. Jang, M.Y. Kim, C. Jung, S.H. Kim, D. Choi, S.C. Park, C. Scheu, P. Choi 

Microscopy and Microanalysis (2024) ozae032.

[LINK] 

165. Novel Ni-Co-based superalloys with high thermal stability and specific yield stress discovered by directed energy deposition

B. Yoo, C. Jung, K. Jang, H. Jun, P. Choi

Materials & Design 238 (2024) 112607.

[LINK] 

164. Fe-based high-entropy alloy with excellent mechanical properties enabled by nanosized precipitates and heterogeneous grain distribution

H. Jung¹, S. Lee¹, T. Kang, A. Zargaran, P. Choi,  S.S. Sohn

Journal of Materials Science & Technology 181 (2024) 71-81.

[LINK] 

2023 

163. Effect of Heat Treatment Temperature on the Crystallization Behavior and Microstructural Evolution of Amorphous NbCo1.1Sn

C. Jung, S. Zhang, K. Jang, N. Cheng, C. Scheu, S.H. Yi, P. Choi

ACS applied materials & interfaces 15 (39) 46064-46073.

[LINK] 

161. The interfaces of Ag-rich and Cu-rich AgCu phases boost oxygen reduction activity

Y. Park¹, C. Lee¹, J. Choi, P. W. Kang, C. Scheu, H. M. Lee, P. Choi, C. Jung

Applied Surface Science 637 (2023) 157949.

[LINK] 

160. Reduced lattice thermal conductivity through tailoring of the crystallization behavior of NbCoSn by V addition

C. Jung, S.J. Jeon, S. Lee, H. Park, S. Han, J. Oh, S.H. Yi, P. Choi

Journal of Alloys and Compounds 962 (2023) 171191. 

[LINK] 

159. Elucidating the evolution of long-period stacking ordered phase and its effect on deformation behavior in the as-cast Mg-6Gd-1Zn-0.6Zr alloy

S. Lee, Y. Park, J. Go, Y.M. Kim, S.S. Sohn, J. Li, P. Choi

Journal of Magnesium and Alloys 11 (2023) 2801-2810

[LINK] 

158. Elucidating the ball-milling-induced crystallization mechanism of amorphous NbCo1.1Sn via atomic-scale compositional analysis

H.Park, C. Jung, S. Yi, P. Choi

Journal of Alloys and Compounds 968 (2023) 172014.

[LINK] 

157. Microstructural evolution and hot cracking prevention in direct-laser deposited Ni-based superalloy through Hf addition

K.H. Ryou,  H.J. Im, J. Park, P. Choi

Materials & Design 234 (2023) 112298.

[LINK] 

156. Thermally driven changes in the microstructure and mechanical properties of martensitic 15-5 precipitation-hardened stainless steel during directed energy deposition

H.J. Im¹, K.H. Ryou¹, T. Kang, S. Jimbo, S. Nambu, J. Han, P. Choi

Additive Manufacturing 74 (2023) 103729.

[LINK] 

155. Trace-Level Cobalt Dopants Enhance CO2 Electroreduction and Ethylene Formation on Copper

B. Kim¹, Y. Tan¹, Y. Ryu¹, K. Jang, H. Abbas, T. Kang, H. Choi, K. Lee, S. Park, W. Kim, P. Choi, S. Ringe, J. Oh

ACS Energy Letters 8 (2023) 3356-3364.

[LINK] 

154. Enhanced thermoelectric properties of NbCoSn half-Heuslers through in-situ nanocrystallization of amorphous precursors during the consolidation process

C. Jung, K. Jang, H. Park, J. Jang, H. Jang, B. Kang, K. Park, S. Zhang, R. B. Villoro, S. Park, H.J. Ryu, Y.S. Jung, M. Oh, C. Scheu, S. Yi, P. Choi

Journal of Materials Science & Technology 165 (2023) 39-48.

[LINK] 

153. ​Effect of titanium nitride inclusions on the mechanical properties of direst laser deposited Inconel 718

K. Lim¹, K.H. Ryou¹, J. Choi, G. Choi, W.S. Choi, J. Lee, C. Oh, P. Choi, G. Sim

Extreme Mechanics Letters 61 (2023) 102009.

[LINK] 

152. ​Tuning the C1/C2 Selectivity of Electrochemical CO2 Reduction on Cu–CeO2 Nanorods by Oxidation State Control

S. Hong¹, H.G. Abbas¹, K. Jang¹, K.K. Patra, B. Kim, B. Choi, H. Song, K. Lee,  P. Choi, S. ringe, J. Oh

Advanced Materials 35 8 (2023) 2370051. (Featured as Front Cover)

[LINK] 

151. ​Doubled strength and ductility via maraging effect and dynamic precipitate transformation in ultrastrong medium-entropy alloy

H. Chung¹, W.S. Choi¹, H. Jun, H. Do, B. Lee, P. Choi, H.N. Han, W. Ko, S.S. Sohn

Nature Communications 14 (2023) 145.

[LINK] 

150. ​Promotion of topologically close-packed phases in a Ru-containing Ni-based superalloy

S. Lee, J. Do, K. Jang, H. Jun, Y, Park, P. Choi

Scripta Materialia 222 (2023) 115041.

[LINK] ​

2022 

149. ​Pulsed laser-assisted additive manufacturing of Ti-6Al-4V for in-situ grain refinement

H. Yoon, P. Liu, Y. Park, G. Choi, P. Choi, H. Sohn

Scientific Reports 12 1 (2022) 22247.

[LINK] 

148. ​Tracking the Mn Diffusion in the Carbon-Supported Nanoparticles Through the Collaborative Analysis of Atom Probe and Evaporation Simulation

C. Jung^​1, H. Jun^​1, K. Jang, S. Kim, P. Choi

Microscopy and Microanalysis 28 (2022) 1841.

[LINK] 

147. ​Kinetic stabilization of a topotactically transformed texture morphology via doping in Ni-rich lithium layered oxides

C. Jung, C. Jung, J. Lee, J. Oh, H. Shim, W. Kim, E. Lee, M. Kim, P. Choi, S. Hong

Journal of Materials Chemistry A 10 (2022) 13735.

[LINK] 

146. ​Directed energy deposition of γ/γ' Co-Al-W superalloys

B. Yoo, C. Jung, K.H. Ryou, W.S. Choi, L. Haußmann, S. Yang, T. Boll, S. Neumeier, P. Choi

Additive Manufacturing 60 ​B (2022) 103287.

[LINK] 

145. ​Atom-Scale Chemistry in Chalcopyrite-Based Photovoltaic Materials Visualized by Atom Probe Tomography

K. Kim¹, C. Jung¹, K. Yim¹, I. Jeong, D. Shin, I. Hwang, S. Song, S. K. Ahn, Y.-J. Eo, A. Cho, J.-S. Cho, J. H. Park, P. Choi, J. H. Yun, J. Gwak

ACS Applied Materials & Interfaces (2022).

[LINK] 

144. ​Effects of aging time on the microstructural evolution and strengthening behavior of a VCoNiMo medium-entropy alloy

Y.M. Kim^​1, S. Lee^​1, K.J. Kim, T.J. Jang, H. Do, K, Jang, W.S. Choi, M. Jo, B. Lee, P. Choi, S.S. Sohn

Materials Science and Engineering A 857 (2022) 14412.

[LINK] 

143. Improving toughness of medium-Mn steels after friction stir welding through grain morphology tuning 

M.S. Jeong, T.M. Park, D.I. Kim, H. Fujii, H.J. Im, P. Choi, S.J. Lee, J. Han

Journal of Materials Science and Technology 118 (2022) 243-254.

[LINK] 

142. Self-assembled nano-composite perovskites as highly efficient and robust hybrid cathodes for solid oxide fuel cells

J. H. Kim, K. Jang, D.K. Lim, S. Ahn, D.H. Oh, H. Kim, J. Seo, P. Choi, W.C. Jung

Journal of Materials Chemistry A 10 (2022) 2496-2508.

[LINK] 

141. Decomposition behavior of yttria-stabilized zirconia and its effect on directed energy deposited Ti-based composite material

G. Choi, W.S. Choi, Y.S. Lee, D. Kim, J.H. Sung, S. An, C.S. Oh, A. Hattal, M. Djemai, B. Bacroix, G. Dirras, P. Choi

Journal of Materials Science and Technology 112 (2022) 138-150.

[LINK]

140. Joining dissimilar metal of Ti and CoCrMo using directed energy deposition

V.D. Sartika¹, W.S. Choi¹, G. Choi, J. Han, S. Chang, W. Ko, B. Grabowski, P. Choi

Journal of Materials Science and Technology 111 (2022) 99-110.

[LINK]

139. Elemental Sub-Lattice Occupation and Microstructural Evolution in γ/γ′ Co-12Ti-4Mo-Cr Alloys

H.J. Im, S. K. Makineni, C. S. Oh, B. Gault, P. Choi 

Microscopy and Microanalysis 28 (2022) 1335-1339

[LINK]

2021 

138. Reducing time to discovery: materials and molecular modeling, imaging, informatics, and integration 

S. Hong, C.H. Liow, J.M. Yuk, H.R. Byon, Y. Yang, E. Cho, J. Yeom, G. Park, H. Kang, S. Kim, Y. Shim, M. Na, C. Jeong, G. Hwang, H. Kim, H. Kim, S, Eom, S. Cho, H. Jun, Y. Lee, A. Baucour, K. Bang, M. Kim, S. Yun, J. Ryu, Y. Han, A. Jetybayeva, P. Choi, J.C. Agar, S.V. Kalinin, P.W. Voorhees, P. Littlewood, H.M. Lee

ACS Nano 15 (2021) 3971-3995

[LINK]

137. Shear band-driven precipitate dispersion for ultrastrong ductile medium-entropy alloys

T.J. Jang, W.S. Choi, D.W. Kim, G. Choi, H. Jun, A. Ferrari, F. Kormann, P. Choi, S.S. Sohn

Nature Communications 12 (2021) 1-9

[LINK]

136. Three-dimensional atomic mapping of ligands on palladium nanoparticles by atom probe tomography

K. Jang, S. Kim, H. Jun, C. Jung, J. Yu, S. Lee, P. Choi 

Nature Communications 12 (2021) 1-10 (Editors' Highlights in Materials science and chemistry)

[LINK]

135. Atom Probe Tomography Investigations of Ag Nanoparticles Embedded in Pulse-Electrodeposited Ni Films

H. Jun, K. Jang, C. Jung, P. Choi 

Microscopy and Microanalysis 27 (2021) 1007-1016

[LINK]

134. Hot cracking behavior of additively manufactured D2 steel

S.H. Lim, K.H. Ryou, K. Jang, W.S. Choi, H.M. Lee, P. Choi 

Materials Characterization 178 (2021) 111217

[LINK]

133. Enhanced thermoelectric composite performance from mesoporous carbon additives in a commercial Bi_0.5Sb_1.5Te₃ matrix

S. Kim, J.M. Park, K. Park, S. Chun, H.S. Lee, P. Choi, S. Yi 

Journal of Materials Science & Technology 94 (2021) 175-182

[LINK]

132. Enhanced microstructural stability of γ/γ′-strengthened Co-Ti-Mo-based alloys through Al additions

H.J. Im, W.S. Choi, K.H. Ryou, J. Seol, T.H. Kang, W. Ko, P. Choi 

Acta Materialia 214 (2021) 117011

[LINK]

131. Orientation-dependent plastic deformation mechanisms and competition with stress-induced phase transformation in microscale NiTi

W.S. Choi¹, E. L. Pang¹, W. Ko, H. Jun, H. J. Bong, C. Kirchlechner, D. Raabe, P. Choi

Acta Materialia (2021) 116731

[LINK]

130. On the oxygen-induced hot cracking in a direct laser deposited Ni-based superalloy

K.H. Ryou, B. Yoo, P. Choi

Scripta Materialia 196 (2021) 113751

[LINK]

129. Improved strength of a medium-Mn steel by V addition without sacrificing ductility

T.M. Park, M.S. Jeong, C. Jung, W.S. Choi, P. Choi, J. Han

Materials Science and Engineering: A 802 (2021) 140681

[LINK]

128. Dissecting functional degradation in NiTi shape memory alloys containing amorphous regions via atomisitc simulations

W. Ko, W.S. Choi, G. Xu, P. Choi, Y. Ikeda, B. Grabowski

Acta Materialia 202 (2021) 331-349

[LINK]

127. Tailoring nanostructured NbCoSn-based thermoelectric materials via crystallization of an amorphous precursor

C. Jung, B. Dutta, P. Dey, S. Jeon, S. Han, H.M. Lee, J.S. Park, S.H. Yi, P. Choi

Nano Energy 80 (2021) 105518

[LINK]

2020 

126. FeNiCoAlTaB superelastic and shape-memory wires with oligocrystalline grain structure

W.S. Choi, E. L. Pang, P. Choi, C. A. Schuh

Scripta Materialia 188 (2020) 1-5

[LINK]

125. Additive Manufacturing of Titanium-Base Alloys with Equiaxed Microstructures using Powder Blends

G. Choi¹, W.S. Choi¹, J. Han, P. Choi

Additive Manufacturing 36 (2020) 101467

[LINK]

124. Effects of Mo on the mechanical behavior of γ/γ′-strengthened Co-Ti-based alloys

H.J. Im, S. Lee, W.S. Choi, S. K. Makineni, D. Raabe, W. Ko, P. Choi

Acta Materialia 197 (2020) 69-80

[LINK]

123. Characterization of Pd and Pd@Au core-shell nanoparticles using atom probe tomography and field evaporation simulation

S. Kim, K. Jang, P. Kang, J. Ahn, J. Seol, C. Kwak, C. Hatzoglow, F. Vurpillot, P. Choi

Journal of Alloys and Compounds 831 (2020) 154721

[LINK]

122. Atomically Embedded Ag via Electrodiffusion Boosts Oxygen Evolution of CoOOH Nanosheet Arrays

C. Lee¹, K. Shin¹, C. Jung¹, P. Choi, G. Henkelman, H. Lee

ACS Catalysis 10 (2020) 562-569

[LINK]

121. Mechanisms of extrinsic alkali incorporation in CIGS solar cells on flexible polyimide elucidated by nanoscale and quantitative analyses

K. Kim, I. Jeong, Y. Cho, D. Shin, S. Song, S. Ahn, Y. Eo, A. Cho, C. Jung, W. Jo, J. Kim, P. Choi, J. Gwak, J. Yun

Nano Energy 67 (2020) 104201

[LINK]

120. Atomic scale mapping of impurities in partially reduced hollow TiO2 nanowires

J. Lim, S. Kim, R. A. Armengol, O. Kasian, P. Choi, L. Stephenson, B. Gault, C. Scheu

Angeweandte Chemie International Edition (2020) 10.1002

[LINK]

119.Effects of transformation-induced plasticity on the small-scale deformation behavior of sinigle crystalline complex concetrated alloys

W.S. Choi, H. Oh, M. Lai, N.V. Malyar, C. Kirchlechner, E. Park, P. Choi 

Scripta Materialia 176 (2020) 122-125 

[LINK]

2019 

118. Microstructural evolution of the heat affected zone of a Co-Ti-W alloy upon laser cladding with a CoNiCrAlY coating

J. Han, B. Yoo, H. Im, C. S. Oh, P. Choi 

Materials Characterization 158 (2019) 109998 

[LINK]

117. Passivation of Deep-Level Defects by Cesium Fluoride Post-Deposition Treatment for Improved Device Performance of Cu(In,Ga)Se2 Solar Cells 

H. Lee, Y. Jang, S. Nam, C. Jung, P. Choi, J. Gwak, J. Yun, K. Kim, B. Shin 

ACS Applied Materials & Interfaces 11 (2019) 35653-35660. 

[LINK]

116. Fabrication of Atom Probe Tomography Specimens from Nanoparticles Using a Fusible Bi–In–Sn Alloy as an Embedding Medium

S. Kim, J. Lee, J. Ahn, P. Choi  

Microscopy and Microanalysis 25 (2019) 438-446. 

[LINK]

115. Effects of phase composition and elemental partitioning on soft magnetic properties of AlFeCoCrMn high entropy alloys

C. Jung¹,  K. Kang¹, A. Marshal, K. G. Pradeep, J. Seol, H. Lee, P. Choi 

Acta Materialia 171 (2019) 31-39.

[LINK]

114. A simple and robust route toward flexible CIGS photovoltaic devices on polymer substrates - Atomic level microstructural analysis and local opto-electronic investigation

K. Kim, J. Kim, M. Gangc, S. Kim, S. Song, Y. Cho, D. Shin, Y. Eo, I. Jeong, Seung, S. Ahn, A. Cho, J. Kim, S. Yoon, P. Choi, W. Jo, J. Kim, J. Gwak, J. Yune 

Solar Energy Materials and Solar Cells 195 (2019) 280 - 290. 

[LINK]

 

113. Variable chemical decoration of extended defects in Cu-poor Cu2ZnSnSe4 thin films

T. Schwarz, A. Redinger, S. Siebentritt, Z. Peng, B. Gault, D Raabe, P. Choi 

Phys. Rev. Materials 3,  (2019) 035402.

[LINK] 

 

112. Unraveling the Metastability of Cn2+ (n = 2–4) Clusters

Z. Peng, D. Zanuttini, B. Gervais, E. Jacquet, I. Blum, P. Choi, D. Raabe, F. Vurpillot, B. Gault 

J. Phys. Chem. Lett., (2019) 581–588.

[LINK]  

111. On the microstructural evolution and partitioning behavior of L12-structured γ′-based Co-Ti-W alloys upon Cr and Al alloying 

B. Yoo, H. Im, J. Seol, P. Choi

Intermetallics 104 (2019) 97-102.

[LINK]  

110. Crucial microstructural feature to determine the impact toughness of intercritically annealed medium-Mn steel with triplex-phase microstructure

M. Kim, T. Park, K. Baik, W. Choi, P. Choi, J. Han 

Acta Materialia 164 (2019) 122-134.

[LINK]  

 

 

 

2018

109. Compositional evolution of long-period stacking ordered structures in magnesium studied by atom probe tomography

J. Kim, W. Guo, P. Choi, D. Raabe 

Scripta Materialia 156 (2018) 55–59. 

[LINK]  

108. On the nature of twin boundary-associated strengthening in Fe-Mn-C steel

W.S. Choi, S. Sandlöbes, N. V.Malyar, C. Kirchlechner, S. Korte-Kerzel, G. Dehm, P. Choi, D. Raabe 

Scripta Materialia 156 (2018) 27–31. 

[LINK] 

107. Elemental partitioning and site-occupancy in γ/γ′ forming Co-Ti-Mo and Co-Ti-Cr alloys

H.J. Im, S.K. Makineni, B. Gault, F. Stein, D. Raabe, P. Choi

Scripta Materialia 154 (2018) 159–162. 

[LINK]  

 

106.  Spallation resistance of oxide scales on Alloy 617 enhanced by boron addition

H. Jeong, S.H. Kim, W.S. Choi, P. Choi

Corrosion Science 140 (2018) 196–204. 

[LINK]  

 

105. A new method for mapping the three-dimensional atomic distribution within nanoparticles by atom probe tomography (APT)

S.H. Kim, P.W. Kang, O.O. Park, J.B. Seol, J.P. Ahn, J.Y. Lee, P. Choi

Ultramicroscopy 190 (2018) 30-38.

[LINK] 

 

104. On the detection of multiple events in atom probe tomography

Z. Peng, F. Vurpillot, P. Choi, Y. Li, D. Raabe, B. Gault

Ultramicroscopy 189 (2018) 54-60.

[LINK] 

 

2017 

103. Enhanced Congo red dye removal from aqueous solutions using iron nanoparticles: adsorption, kinetics, and equilibrium studies

S.H. Kim, P. Choi

Dalton Transactions 46 (2017) 15470 - 15479.

[LINK] 

 

102. Strengthening and strain hardening mechanisms in a precipitation-hardened high-Mn lightweight steel

M. Yao, E. Welsch, D. Ponge, S. Haghighat, S. Sandloebes, P. Choi, M. Herbig, I. Bleskov, T. Hickel, M. Lipinska-Chwalek, P. Shanthraj, C. Scheu, S. Zaeffere, B. Gault, D. Raabe

Acta Materialia 140 (2017) 258-173.

[LINK] 

 

101. Modulation of plastic flow in metallic glasses via nanoscale networks of chemical heterogeneities

J. Kim, H. Oh, W. Kim, P. Choi, D. Raabe, E. Park

Acta Materialia 140 (2017) 116-129.

[LINK] 

 

100. Oxidation behavior of AlN/CrN multilayered hard coatings

D. Tytko, P. Choi, D. Raabe

Nano Convergence 4 (2017) 15.

[LINK] 

 

99. Long-term thermal stability of nanoclusters in ODS-Eurofer steel: An atom probe tomography study

K. D. Zilnyk, K.G. Pradeep, P. Choi, H. R. Z. Sandim, D. Raabe

Journal of Nuclear Materials 492 (2017) 142-147.

[LINK] 

 

98. Evaluation of Analysis Conditions for Laser-Pulsed Atom Probe Tomography: Example of Cemented Tungsten Carbide

Z. Peng, P. Choi, B. Gault, D. Raabe

Microscopy and Microanalysis 23 (2017) 431-442.

[LINK]  

 

97. Atomic diffusion induced degradation in bimetallic layer coated cemented tungsten carbide

Z. Peng, M. Rohwerder, P. Choi, B. Gault, T. Meiners, M. Friedrichs, H. Kreilkamp, F. Klocke, D. Raabe

Corrosion Science 120 (2017) 1-13.

[LINK]  

96. Amorphous Phase Separation in an Fe-based Bulk Metallic Glass

W. Guo, P. Choi, J. Seol

Materials Letters 190 (2017) 161-164.

[LINK] 

 

95. Formation of nanometer-sized Cu-Sn-Se particles in Cu2ZnSnSe4 thin-films and their effect on solar cell efficiency

T. Schwarz, O. Cojocaru-Mirédin, M. Mousel, A. Redinger, D. Raabe, P. Choi

Acta Materialia 132 (2017) 276-284.

[LINK] 

 

 

 

2016

94. On Local Phase Equilibria and the Appearance of Nanoparticles in the Microstructure of Single-Crystal Ni-Base Superalloys  

V. Yardley, I. Povstugar, P. Choi, D. Raabe, A.B. Parsa, A. Kostka, C.  Somsen, A. Dlouhy, K. Neuking, E.P. George, G. Eggeler

Journal of Applied Physics 120 (2016) 00237.

[LINK] 

 

93. (Nbx, Zr1–x)4AlC3 MAX Phase Solid Solutions: Processing, Mechanical Properties, and Density Functional Theory Calculations

T. Lapauw, D. Tytko, K. Vanmeensel, S. Huang, P. Choi, D. Raabe, E.N. Caspi, O. Ozeri, M. Baben, J.M. Schneider, K. Lambrinou, J. Vleugels  

Journal of Applied Physics 120 (2016) 6b00484.

[LINK] 

92. Impact of annealing on electrical properties of Cu2ZnSnSe4 absorber layers

T. Weiss, A. Redinger, G. Rey, T. Schwarz, M. Spies, O. Cojocura-Mirédin, P. Choi, S. Siebentritt

Journal of Applied Physics 120 (2016) 045703.

[LINK] 

 

91. Phase selection and nanocrystallization in Cu-free soft magnetic FeSiNbB amorphous alloy upon rapid annealing 

L. Morsdorf, K. G. Pradeep, G. Herzer, A. Kovács, R. Dunin-Borkowski, I. Povstugar, G.  Konygin, P. Choi 

Journal of Applied Physics 119 (2016) 124903.

[LINK]

 

90. Combined atom probe tomography and density functional theory investigation of the Al off-stoichiometry of κ-carbides in an austenitic Fe–Mn–Al–C low density steel

M. Yao, P. Dey, J. Seol, P. Choi, M. Herbig, R. K. W. Marceau, T. Hickel, J. Neugebauer, D. Raabe

Acta Materialia 106 (2016) 229-238. 

[LINK] 

 

89. Strain hardening by dynamic slip band refinement in a high-Mn lightweight steel

E. Welsch, D. Ponge, S. M. H. Haghighat, S. Sandlöbes, P. Choi, M. Herbig, S. Zaefferer, D.  Raabe 

Acta Materialia 116 (2016) 188-199.

[LINK]

 

88. Atom probe tomography of interfaces in ceramic films and oxide scales 

K. Stiller, M. Thuvander, I. Povstugar, P. Choi, H. O. Andrén

MRS Bulletin 41 (2016) 35-39.

[LINK]  

  

87. Elemental partitioning, lattice misfit and creep behavior of Cr containing gamma´-strengthened Co base superalloys

I. Povstugar, C. Zenk, R. Li, P. Choi, S. Neumeier, O. Dolotko, M. Hoelzel, S. Neumeier, M. Göken, D. Raabe,

Materials Science and Technology 32 (2016) 220-225.

[LINK]

2003 - 2015 (Before appointment to KAIST)

86. Effect of ruthenium on the precipitation of topologically close packed phases in Ni-based superalloys of 3rd and 4th generation 

K. Matuszewski, R. Rettig, H. Matysiak, Z. Peng, I. Povstugar, P. Choi, J. Müller, D. Raabe, E. Spiecker, K.J. Kurzydłowski, R.F. Singer

Acta Materialia 95 (2015) 274-283

[LINK] 

 

85. Atom probe informed simulations of dislocation–precipitate interactions reveal the importance of local interface curvature

A. Prakash, J. Guenole, J. Wang, J. Muller, E. Spiecker, M.J. Mills, I. Povstugar, P. Choi, D. Raabe and E. Bitzek

Acta Materialia 92 (2015) 33-45

[LINK] 

 

84. The role of grain boundaries in the initial oxidation behavior of austenitic stainless steel containing alloyed Cu at 700 °C for advanced thermal power plant application

J. H. Kim, B. K. Kim, D. I. Kim, P. P. Choi, D. Raabe, K. W. Yi

Corrosion Science 96 (2015) 52-66. 

[LINK] 

 

83. Synergy of atom-probe structural data and quantum-mechanical calculations in a theory-guided design of extreme-stiffness superlattices containing metastable phase

M. Friak, D. Tytko, D. Holec, P. Choi, P. Eisenlohr, D. Raabe, J. Neugebauer

New Journal of Physics 17 (2015) 093004-1-093004-8. 

[LINK] 

 

82. The nucleation of Mo-rich Laves phase particles adjacent to M23C6 micrograin boundary carbides in 12% Cr tempered martensite ferritic steels

M. I. Isik, A. Kostka, V. Yardley, K. G. Pradeep, M. J. Duarte, P. Choi, D. Raabe, G. Eggeler

Acta Materialia 90 (2015) 94-104.

[LINK] 

 

81. Guided mass spectrum labelling in atom probe tomography

D. Haley, P. Choi, D. Raabe

Ultramicroscopy 159 (2015) 338-345.

[LINK] 

 

80. Mining information from atom probe data

J. Cairney, K. Rajan, D. Haley, P. Bagot, P. Choi, P. Felfer, S. Ringer, R. Marceau, M. Moody

Ultramicroscopy 159 (2015) 324-337. 

[LINK] 

 

79. Atomic scale investigation of non-equilibrium segregation of boron in a quenched Mo-free martensitic steel

Y. Li, D. Ponge, P. Choi, D. Raabe 

Ultramicroscopy 159 (2015) 240-247. 

[LINK] 

 

78. Homogeneity and composition of AlInGaN: A multiprobe nanostructure study

F. Krause, J. Ahl, D. Tytko, P. Choi, R. Egoavil, M. Schowalter, T. Mehrtens, K. Müller-Caspary, J. Verbeeck, D. Raabe, J. Hertkorn, K. Engl, A. Rosenauer 

Ultramicroscopy 156 (2015) 29-36.

[LINK] 

 

77. Combining structural and chemical information at the nanometer scale by correlative transmission electron microscopy and atom probe tomography

M. Herbig, P. Choi, D. Raabe

Ultramicroscopy 153 (2015) 32-39.

[LINK]

 

76. Detection of Cu2Zn5SnSe8 and Cu2Zn6SnSe9 phases in co-evaporated Cu2ZnSnSe4 thin-films

T. Schwarz, M. A. L. Marques, S. Botti, M. Mousel, A. Redinger, S. Siebentritt, O. Cojocaru-Mirédin, D. Raabe, P. Choi

Applied Physics Letters 107 (2015) 172102.

[LINK]

 

75. Atom probe tomography study of internal interfaces in Cu2ZnSnSe4 thin-films

T. Schwarz, O. Cojocaru-Mirédin, P. Choi, M. Mousel, A. Redinger, S. Siebentritt, D. Raabe,

Journal of Applied Physics 118, 095302 (2015).

[LINK] 

 

74. Effects of Ru on elemental partitioning and precipitation of topologically close-packed phases in Ni-based superalloys

Z. Peng, I. Povstugar, K. Matuszewski, R. Rettig, R. Singer, A. Kostka, P. Choi, D. Raabe

Scripta Materialia 101 (2015)44-47.

[LINK]

 

73. Advanced Scale Bridging Microstructure Analysis of Single Crystal Ni-Base Superalloys

A. Parsa, P. Wollgramm, H. Buck, C. Somsen, A. Kostka, I. Povstugar, P. Choi, D. Raabe, A. Dlouhy, J. Müller, E. Spiecker, K. Demtroeder, J. Schreuer, K. Neuking, G. Eggeler

Advanced Engineering Materials 17 (2015) 216-230.

[LINK]

 

72. Deformation induced alloying in crystalline – metallic glass nano-composites

W. Guo, J. Yao, E. Jägle, ​P. Choi, M. Herbig, J. Schneider, D. Raabe

Materials Science and Engineering A 628 (2015) 269-280.

[LINK]

 

71. Dynamic strain aging studied at the atomic scale

H. Aboulfadl, J. Deges, P. Choi, D. Raabe

Acta Materialia 86 (2015) 34-42.

[LINK] 

 

70. Mechanisms of subgrain coarsening and its effect on the mechanical properties of carbon-supersaturated nanocrystalline hypereutectoid

Y. J. Li, A. Kostka, P. Choi, S. Goto, D. Ponge, R. Kirchheim, D. Raabe

Acta Materialia 84 (2015) 110-123.

[LINK]

 

69. Segregation of boron at prior austenite grain boundaries in a quenched martensitic steel studied by atom probe tomography

Y. Li, D. Ponge, P. Choi, D. Raabe

Scripta Materialia 96 (2015) 13-16.

[LINK] 

 

68. Thermal dissolution mechanisms of AlN/CrN hard coating superlattices studied by atom probe tomography and transmission electron microscopy

D. Tytko, P. Choi, D. Raabe

Acta Materialia 85 (2015) 32-41.

[LINK]

 

67. Grain boundary segregation in Fe-Mn-C twinning-induced plasticity steels studied by correlative electron backscatter diffraction and atom probe tomography

M. Herbig, M. Kuzmina, C. Haase, D. A. Molodov, R. K. W. Marceau, I. Gutierrez-Urrutia, D. Haley, P. Choi, D. Raabe

Acta Materialia 83 (2015) 37-47.

[LINK] 

 

66. Precipitation and austenite reversion behavior of a maraging steel produced by selective laser melting

E. Jägle, P. Choi, J. van Humbeeck, D. Raabe

Journal of Materials Research 29 (2014) 2072-20179.

[LINK]

 

65. The Maximum Separation Cluster Analysis Algorithm for Atom-Probe Tomography: Parameter Determination and Accuracy

E. Jägle, P. Choi, D. Raabe

Microscopy and Microanalysis 20 (2014) 1662-1671.

[LINK]

 

64. Alloy design, combinatorial synthesis, and microstructure-property relations for low-density Fe-Mn-Al-C austenitic steels

D. Raabe, H. Springer, I. Gutierrez-Urrutia, F. Roters, M. Bausch, J. B. Seol, M. Koyama, P. Choi, K. Tsuzaki

JOM 66 (2014) 1845-1856.

[LINK] 

 

63. Grain boundary segregation engineering in metallic alloys: A pathway to the design of interfaces

D. Raabe, M. Herbig, S. Sandlöbes, Y. Li, D. Tytko, M. Kuzmina, D. Ponge, P. Choi

Current opinion in Solid State and Materials Science 18 (2014) 253-261.

[LINK]

 

62. Segregation stabilizes nanocrystalline bulk steel with near theoretical strength

Y. J. Li, D. Raabe, M. Herbig, P. Choi, S. Goto, A. Kostka, H. Yarita, C. Borcher, R. Kirchheim

Physical Review Letters 113 (2014) 106104.

[LINK] 

 

61. Shear-induced mixing governs co-deformation of crystalline-amorphous nanolaminates

W. Guo, E. A. Jägle, P. Choi, J. Yao, A. Kostka, J. M. Schneider, D. Raabe

Physical Review Letters 113 (2014) 035501.

[LINK] 

 

60. Atom probe tomography observation of hydrogen in high-Mn steel and silver charged via an electrolytic route

D. Haley, S. Merzlikin, P. Choi, D. Raabe

International Journal of Hydrogen Energy 39 (2014) 12221-12229.

[LINK]

 

59. Elemental partitioning and mechanical properties of Ti and Ta containing Co-Al-W-base superalloys studied by atom probe tomography and nanoindentation

I. Povstugar, P. Choi, S. Neumeier, A. Bauer, C. Zenk , M. Göken, D. Raabe

Acta Materialia 78 (2014) 78-85.

[LINK]

 

58. Designing Heusler nano-precipitates by elastic misfit stabilization in Fe-Mn maraging steels

J. Millán, S. Sandlöbes, A. Al-Zubi, T. Hickel, P. Choi, J. Neugebauer, D. Ponge, D. Raabe

Acta Materialia 76 (2014) 94-105.

[LINK]

 

57. Investigation of the diffusion behavior of sodium in Cu(In,Ga)Se2 layers

A. Lämmle, R. Wuerz, T. Schwarz, O. Cojocaru-Mirédin, P. Choi, M. Powalla

Journal of Applied Physics 115 (2014) 154501.

[LINK] 

 

56. Crystallization, phase evolution and corrosion of Fe-based metallic glasses: An atomic-scale structural and chemical characterization study

M.J. Duarte, A. Kostka, J.A. Jimenez, P. Choi, J. Klemm, D. Crespo, D. Raabe, F.U. Renner

Acta Materialia 71 (2014) 20-30.

[LINK]

 

55. Atom probe tomography study of ultrahigh nano-crystallization rates in FeSiNbBCu soft magnetic amorphous alloys upon rapid annealing

K. G. Pradeep, G. Herzer, P. Choi, D. Raabe

Acta Materialia 68 (2014) 295-309.

[LINK]

 

54. Atomic-Scale Quantification of Grain Boundary Segregation in Nanocrystalline Material

M. Herbig, D. Raabe, Y. J. Li, P. Choi, S. Zaefferer, S. Goto

Physical Review Letters 112 (2014) 126103.

[LINK] 

 

53. Cu-rich precursors improve kesterite solar cells

M. Mousel, T. Schwarz, R. Djemour, T. P. Weiss, J. Sendler, J. C. Malaquias,  A. Redinger, O. Cojocaru-Mirédin, P. Choi, S. Siebentritt

Advanced Energy Materials 4 (2014)1300543.

[LINK]

 

52. Atomic-scale analysis of carbon partitioning between martensite and austenite by atom probe tomography and correlative TEM

Y. Toji, H. Matsuda, M. Herbig, P. Choi, D. Raabe

Acta Materialia 65 (2014)215-228.

[LINK]

 

51. On the Spheroidized Carbide Dissolution and Elemental Partitioning in High Carbon Bearing Steel 100Cr6

W. Song, P. Choi, G. Inden, U. Prahl, D. Raabe, W. Bleck

Metallurgical and Materials Transactions A 45 (2014) 595-606.

[LINK]

 

50. Enhanced superplasticity in an Al-alloyed multicomponent Mn–Si–Cr–C steel

H. Zhang, K. G. Pradeep, S. Mandal, D. Ponge, P. Choi, C. Tasan, D. Raabe

Acta Materialia 63 (2014) 232-244.

[LINK]

 

49. Atomic-scale investigation of ε and θ precipitates in bainite in 100Cr6 bearing steel by atom probe tomography and ab initio calculations

W. Song, J. v. Appen, P. Choi, R. Dronskowski, D. Raabe, W. Bleck

Acta Materialia 61 (2013) 7582-7590.

[LINK]

 

48. Interface-directed spinodal decomposition in TiAlN/CrN multilayer hardcoatings studied by atom probe tomography

I. Povstugar, P. Choi, D. Tytko, J. Ahn, D. Raabe

Acta Materialia 61 (2013) 7534-7542.

[LINK] 

 

47. Segregation engineering enables nanoscale martensite-to-austenite phase transformation at grain boundaries: a pathway to ductile martensite

D. Raabe, S. Sandlöbes, J. Millán, D. Ponge, H. Assadi, M. Herbig, P. Choi

Acta Materialia 61 (2013) 6132-6152.

[LINK]

 

46. Element-Resolved Corrosion Analysis of Stainless-Type Glass-Forming Steels

J. Duarte, J. Klemm, S. O. Klemm, S. Borodin, K. J. J. Mayrhofer, M. Stratmann, A. H. Romero, M. Madinehei, D. Crespo, J. Serrano, S. S. A. Gerstl, P. P. Choi, D. Raabe, F. U. Renner

Science 341 (2013)372-376.

[LINK] 

 

45. Understanding the Detection of Carbon in Austenitic High-Mn Steel using atom probe tomography

R. Marceau, P. Choi, D. Raabe

Ultramicroscopy 132 (2013) 239-247.

[LINK] 

 

44. Combined nano-SIMS/AFM/EBSD analysis and atom probe tomography, of carbon distribution in austenite/ε-martensite high-Mn steels

J. B. Seol, B. H. Lee, P. P. Choi, S. G. Lee, C. G. Park

Ultramicroscopy 132 (2013) 248-257.

[LINK] 

 

43. Atomic scale investigation of redistribution of alloying elements in pearlitic steel wires upon cold-drawing and annealing

Y. J. Li, P. Choi, S. Goto, C. Borchers, D. Raabe, R. Kirchheim

Ultramicroscopy 132 (2013) 233-238.

[LINK]

 

42. Influence of supersaturated carbon on the diffusion of Ni in ferrite determined by atom probe tomography

T. Kresse, Y. J. Li, T. Boll, C. Borchers, P. Choi, T. Al-Kassab, D. Raabe, R. Kirchheim

Scripta Materialia 69 (2013) 424-427.

[LINK]

 

41.  Measurement of the indium concentration in high indium content InGaN layers by scanning transmission electron microscopy and atom probe tomography

T. Mehrtens, M. Schowalter, D. Tytko, P. Choi, D. Raabe, L. Hoffmann, H. Jönen, U. Rossow, A. Hangleiter, A. Rosenauer

Applied Physics Letters 102 (2013) 132112.

[LINK] 

 

40.  Atomic-scale compositional characterization of a nanocrystalline AlCrCuFeNiZn high-entropy alloy using atom probe tomography

K.G. Pradeep, N. Wanderka, P. Choi, J. Banhart, B.S. Murty, D. Raabe

Acta Materialia 61 (2013) 4696-4706.

[LINK]

 

39.  Nanocrystalline Fe-C alloys produced by ball milling of iron and graphite

Y. Z. Chen, A. Herz, Y. J. Li, C. Borchers, P. Choi​, D. Raabe, R. Kirchheim

Acta Materialia 61 (2013) 3172-3185.

[LINK] 

 

38.  Grain boundary segregation in a bronze-route Nb3Sn superconducting wire studied by atom probe tomography

M. J. R. Sandim, D. Tytko, A. Kostka, P. Choi, S. Awaji, K. Watanabe, D. Raabe

Superconductor Science and Technology 26 (2013) 055008.

[LINK]

 

37. Direct evidence for the formation of ordered carbides in a ferrite based low-density Fe-Mn-Al-C alloy studied by transmission electron microscopy and atom probe tomography

J. B. Seol, D. Raabe, P. P. Choi, H. S. Park, J. H. Kwak, C. G. Park

Scripta Materialia 68 (2013) 348-353.

[LINK]

 

36.  Atom Probe study of Cu2ZnSnSe4 thin-films prepared by co-evaporation and post-deposition annealing

T. Schwarz, O. Cojocaru-Mirédin, P. Choi, M. Mousel, A. Redinger, S. Siebentritt, D. Raabe

Applied Physics Letters 102 (2013) 042101.

[LINK]

 

35.  Compositional gradients and impurity distributions in CuInSe2 thin-film solar cells studied by atom probe tomography

P. Choi, O. Cojocaru-Mirédin, R. Wuerz

Surface and Interface Analysis 44 (2012) 1386-1388.

[LINK] 

 

34.  Exploring the p-n junction region in Cu(In,Ga)Se2 thin-film solar cells at the nanometer-scale

O. Cojocaru-Mirédin, P. Choi, R. Wuerz, D. Raabe

Applied Physics Letters 101 (2012) 181603.

[LINK] 

 

33. Atomic scale effects of alloying, partitioning, solute drag and austempering on the mechanical properties of high-carbon bainitic–austenitic TRIP steels

J. B. Seol, D. Raabe, P. P. Choi, Y. R. Im, C. G. Park

Acta Materialia 60 (2012) 6183-6199.

[LINK]

 

32.  Confined and chemically flexible grain boundaries in polycrystalline compound semiconductors

D. Abou-Ras, S. S. Schmidt , R. Caballero, T. Unold, H. W. Schock, C. T. Koch , B. Schaffer, M. Schaffer, P. Choi, O. Cojocaru-Mirédin

Advanced Energy Materials 2 (2012) 992-998.

[LINK]

 

31. New insights into the atomic-scale structures and behavior of steels

E. A. Marquis, P. Choi, F. Danoix, K. Kruska, S. Lozano-Perez, D. Raabe, C. A. Williams

Microscopy Today 20 (2012) 44-48.

[LINK]

 

30. Atom probe tomography of compound semiconductors for photovoltaic and light-emitting device applications

P. Choi, O. Cojocaru-Mirédin, D. Abou-Ras, R. Caballero, D. Raabe, V. S. Smentkowski, C. G. Park, G. H. Gu, B. Mazumder, M. H. Wong, Y. L. Hu, T. P. Melo, J. S. Speck

Microscopy Today 20 (2012) 14-19.

[LINK]

 

29. Evolution of strength and microstructure during annealing of heavily cold-drawn 6.3 GPa hypereutectoid pearlitic steel wire

Y. Li, P. Choi, S. Goto, C. Borchers, D. Raabe, R. Kirchheim

Acta Materialia 60 (2012) 4005-4016.

[LINK]

 

28. Nanoscale austenite reversion through partitioning, segregation and kinetic freezing: Example of a ductile 2 GPa Fe–Cr–C steel

L. Yuan, D. Ponge, J. Wittig, P. Choi, J. A. Jiménez, D. Raabe

Acta Materialia 60 (2012) 2790-2804.

[LINK]

 

27. Microstructural evolution of a Ni-based superalloy (617B) at 700 °C studied by electron microscopy and atom probe tomography

D. Tytko, P. Choi, J. Klöwer, A. Kostka, G. Inden, D. Raabe

Acta Materialia 60 (2012) 1731-1740.

[LINK]

 

26. Characterization of grain boundaries in Cu(In,Ga)Se2 films using atom probe tomography

O. Cojocaru-Mirédin, P. Choi, D. Abou-Ras, S. S. Schmidt, R. Caballero, D. Raabe

Journal of Photovoltaics 1 (2011) 207-212.

[LINK]