The effect of titanium and silicon addition on phase equilibrium and mechanical properties of CoCrFeMnNi-based high entropy alloy

Yamanaka, Syuki; Ikeda, Ken-ichi; Miura, Seiji

Journal of Materials Research, 2021, 36(10), 2056-2070

Permalink : https://hdl.handle.net/2115/82192

このアイテムのアクセス数:516件（2026-08-26 00:19 集計）

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https://doi.org/10.1557/s43578-021-00251-0     17

論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/82192
タイトル
The effect of titanium and silicon addition on phase equilibrium and mechanical properties of CoCrFeMnNi-based high entropy alloy
著者
Yamanaka, Syuki ; Ikeda, Ken-ichi ; Miura, Seiji
著者名
Yamanaka, Syuki
e-Rad_Researcher
50080164
著者名
Ikeda, Ken-ichi
e-Rad_Researcher
50199949
著者名
Miura, Seiji
言語
英語
発行日
2021-05
出版者
Springer
収録物名
Journal of Materials Research
巻(号)
36(10)
ページ
2056-2070
抄録
The effects of Ti and Si addition on the phase equilibrium and mechanical properties of the equiatomic CoCrFeMnNi high entropy alloy (Cantor alloy) were investigated. The phase equilibrium at 1000 degrees C was determined from the result of X-ray diffraction and electron probe micro-analysis. Ti addition stabilizes the sigma phase, A12 phase and C14-Laves phase, while Si addition stabilizes the A13 phase. The phase relationships were represented by projection onto (Co, Fe, Mn, Ni)-Cr-X(Ti or Si) isothermal ternary cross-section at 1000 degrees C in Co-Cr-Fe-Mn-Ni-X senary system. Tensile tests were conducted on Cantor-based fcc single solid solution alloys with Ti or Si dissolution at room temperature. The 0.2% yield strength and ultimate tensile strength increased with either element addition. The Ti-added alloy showed higher strength than the Si-added alloy. The difference in ductility in the alloys is related to their strain hardening behavior in the higher strain range.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0884-2914
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1557/s43578-021-00251-0