About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
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Presentation Title |
Establishing Composition-Temperature-Grain-Strength Relationship of FCC Complex Concentrated Alloys |
Author(s) |
Dong Whan Kim, Heh Sang Ahn, Wook Ha Ryu, Hwi Yoon Jeong, Je In Lee, Eun Soo Park |
On-Site Speaker (Planned) |
Dong Whan Kim |
Abstract Scope |
FCC complex concentrated alloys (CCAs) with 3d transition metals have been reported to exhibit exceptional mechanical properties in extreme conditions. However, there is a large degree of freedom in the selection of elements in a CCA system, making it challenging to tailor-design novel alloys with desired properties. A new tool is required to indirectly predict the properties of unknown alloys. In the present study, A relationship between composition and mechanical properties of CCAs is suggested in terms of electronegativity difference. According to tensile test results under various grain sizes and temperature conditions, a positive correlation was found between the electronegativity difference and yield strength of the alloys. Furthermore, it was possible to construct a nonlinear equation including the effects of temperature and grain size. These results could provide a new perspective on not only the prediction of mechanical properties of unknown alloys, but tailor-designing new alloy systems with desired properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, |