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)
Kim, Y.-J.; Kim, H.; Kang, M.; Rhee, K.; Shin, S. Y.; Lee, S.: Correlation of microstructure, chip-forming properties, and dynamic torsional properties in free-machining steels. Metallurgical and Materials Transactions A 44 (10), pp. 4613 - 4625 (2013)
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)
Kim, H.; Kang, M.; Shin, S. Y.; Lee, S.: Alligatoring phenomenon occurring during hot rolling of free-machining steel wire rods. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 568, pp. 8 - 19 (2013)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
Hydrogen is a clean energy source as its combustion yields only water and heat. However, as hydrogen prefers to accumulate in the concentrated stress region of metallic materials, a few ppm Hydrogen can already cause the unexpected sudden brittle failure, the so-called “hydrogen embrittlement”. The difficulties in directly tracking hydrogen limits…
This project with the acronym GB-CORRELATE is supported by an Advanced Grant for Gerhard Dehm by the European Research Council (ERC) and started in August 2018. The project GB-CORRELATE explores the presence and consequences of grain boundary phase transitions (often termed “complexions” in literature) in pure and alloyed Cu and Al. If grain size…