[S4] Materials Science and Technology in High-Entropy Alloys (XIII)

2:00 PM - 2:20 PM JST(5:00 AM - 5:20 AM UTC)

[S4.16] Evolution of chemical short-range order and its impact on mechanical properties in Ni-33at%V and equi-atomic NiCoV alloys

○Chenliang CHU¹, Shuhei YOSHIDA¹, Nobuhiro TSUJI¹ (1. Kyoto University)

Keywords:

Chemical short-range order,Medium-entropy alloy,Mechanical properties,Strain-hardening,Deformation behavior

Chemical short-range order (CSRO) evolution and its mechanical impact were compared in Ni-33at.%V and equi-atomic NiCoV alloys. CSRO had little effect on Ni-33V, whereas NiCoV showed enhanced yield strength, strain hardening, and early-stage dislocation density, suggesting that the mechanical role of CSRO varies with chemical complexity.