Precipitation-driven metastability engineering of carbon-doped CoCrFeNiMo medium-entropy alloys at cryogenic temperature

• Published in: Scripta materialia Vol. 188; pp. 140 - 145
• Main Authors: Kwon, Hyeonseok, Moon, Jongun, Bae, Jae Wung, Park, Jeong Min, Son, Sujung, Do, Hyeon-Seok, Lee, Byeong-Joo, Kim, Hyoung Seop
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2020
• Subjects: High-entropy alloy; Martensitic phase transformation; Metastability engineering; Precipitation; Work hardening; Precipitation; Work hardening; Metastability engineering; Martensitic phase transformation; High-entropy alloy

Here, novel medium-entropy alloys with chemical compositions of Co17.5Cr12.5Fe55Ni10Mo4C1 and Co17.5Cr12.5Fe55Ni10Mo3C2 (at%) exhibiting excellent tensile properties at both room and liquid nitrogen temperatures have been developed. Precipitation of carbides changes the chemical composition and phas...