Chung, H.; Kim, D. W.; Cho, W. J.; Han, H. N.; Ikeda, Y.; Ishibashi, S.; Körmann, F.; Sohn, S. S.: Effect of solid-solution strengthening on deformation mechanisms and strain hardening in medium-entropy V1-xCrxCoNi alloys. Journal of Materials Science & Technology 108, pp. 270 - 280 (2022)
Yang, D.-C.; Jo, Y.-H.; Ikeda, Y.; Körmann, F.; Sohn, S. S.: Effects of cryogenic temperature on tensile and impact properties in a medium-entropy VCoNi alloy. Journal of Materials Science & Technology 90, pp. 159 - 167 (2021)
Vakili, S. M.; Zarei-Hanzaki, A.; Anoushe, A.S.; Abedi, H. R.; Mohammad-Ebrahimi, M. H.; Jaskari, M.; Sohn, S. S.; Ponge, D.; Karjalainen, L. P.: Reversible dislocation movement, martensitic transformation and nano-twinning during elastic cyclic loading of a metastable high entropy alloy. Acta Materialia 185, pp. 474 - 492 (2020)
Jo, M. C.; Choi, J. H.; Lee, H.; Zargaran, A.; Ryu, J.; Sohn, S. S.; Kim, N. J.; Lee, S.: Effects of solute segregation on tensile properties and serration behavior in ultra-high-strength high-Mn TRIP steels. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 740-741, pp. 16 - 27 (2019)
Kim, D. W.; Sohn, S. S.; Kim, W.-K.; Kim, K.-S.; Lee, S.: Study of Bauschinger effect of acicular ferrite and polygonal ferrite through ex-situ interrupted bending tests in API X80 linepipe steels. Scientific Reports 8 (1), 15598 (2018)
Jo, M. C.; Lee, H.; Zargaran, A.; Ryu, J.; Sohn, S. S.; Kim, N. J.; Lee, S.: Exceptional combination of ultra-high strength and excellent ductility by inevitably generated Mn-segregation in austenitic steel. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 737, pp. 69 - 76 (2018)
Lee, D. H.; Sohn, S. S.; Song, H.; Ro, Y.; Lee, C. S.; Lee, S.; Hwang, B.: Effects of Start and Finish Cooling Temperatures on the Yield Strength and Uniform Elongation of Strain-Based API X100 Pipeline Steels. Metallurgical and Materials Transactions A 49 (10), pp. 4536 - 4543 (2018)
Sohn, S. S.; Han, S. Y.; Shin, S. Y.; Bae, J.; Lee, S.: Effects of microstructure and pre-strain on Bauschinger effect in API X70 and X80 linepipe steels. Metals and Materials International 19 (3), pp. 423 - 431 (2013)
Sohn, S. S.; Han, S. Y.; Shin, S. Y.; Bae, J.; Lee, S.: Analysis and estimation of the yield strength of API X70 and X80 linepipe steels by double-cycle simulation tests. Metals and Materials International 19 (3), pp. 377 - 388 (2013)
Sohn, S. S.; Jo, Y. H.; Choi , W.-M.; Kim , D. G.; Kim , H. S.; Lee , B. J.; Lee , S.: Transformation-induced plasticity in HEA: FCC to BCC transformation. Thermec 2018, Paris, France (2018)
Scientists of the Max-Planck-Institut für Eisenforschung pioneer new machine learning model for corrosion-resistant alloy design. Their results are now published in the journal Science Advances
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Electron microscopes offer unique capabilities to probe materials with extremely high spatial resolution. Recent advancements in in situ platforms and electron detectors have opened novel pathways to explore local properties and the dynamic behaviour of materials.
In this ongoing project, we investigate spinodal fluctuations at crystal defects such as grain boundaries and dislocations in Fe-Mn alloys using atom probe tomography, electron microscopy and thermodynamic modeling [1,2].
Here, we aim to develop machine-learning enhanced atom probe tomography approaches to reveal chemical short/long-range order (S/LRO) in a series of metallic materials.