Mohammadi, A.; Novelli, M.; Arita, M.; Bae, J. W.; Kim, H. S.; Grosdidier, T.; Edalati, K.: Gradient-structured high-entropy alloy with improved combination of strength and hydrogen embrittlement resistance. Corrosion Science 200, 110253 (2022)
Lee, J.; Bae, J. W.; Asghari-Rad, P.; Kim, H. S.: Double-humped strain hardening in a metastable ferrous medium-entropy alloy by cryogenic pre-straining and subsequent heat treatment. Scripta Materialia 211, 114511 (2022)
Bae, J. W.; Lee, J.; Zargaran, A.; Kim, H. S.: Enhanced cryogenic tensile properties with multi-stage strain hardening through partial recrystallization in a ferrous medium-entropy alloy. Scripta Materialia 194, 113653 (2021)
Park, J.-M.; Choe, J.; Kim, J. G.; Bae, J. W.; Moon, J.; Yang, S.; Kim, K. T.; Yu, J.-H.; Kim, H. S.: Superior tensile properties of 1C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting. Materials Research Letters 8 (1), pp. 1 - 7 (2020)
Seol, J. B.; Ko, W.-S.; Bae, J. W.; Jo, Y. H.; Li, Z.; Choi, P.-P.; Raabe, D.; Kim, H. S.: Transition in boron boundary cohesion from effectiveness to harmfulness with respect to application temperatures: high-entropy alloys and Ni-based superalloys. 2nd International Conference on High-Entropy Materials (ICHEM 2018), Jeju, South Korea (2018)
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…