南方科技大学知识苑(SUSTech KC): Sigma phase embrittlement in a tempered Fe45Cr25Ni10Mn15Al4C1 medium-entropy alloy

题名	Sigma phase embrittlement in a tempered Fe₄₅Cr₂₅Ni₁₀Mn₁₅Al₄C₁ medium-entropy alloy
作者	Zuo, You1,2 ; Pan, Shuai2 ; He, Binbin2 ; Liang, Zhiyuan 1
通讯作者	He, Binbin; Liang, Zhiyuan
发表日期	2024-03-01
DOI	10.1177/02670836241238634
发表期刊	MATERIALS SCIENCE AND TECHNOLOGY 影响因子和分区
ISSN	0267-0836
EISSN	1743-2847
摘要	Precipitation of intermetallic compounds is an effective strategy for strengthening high- and medium-entropy alloys (HEAs/MEAs). Here, we developed a strong, ductile and cost-effective duplex MEA with a chemical composition of Fe45Cr25Ni10Mn15Al4C1 (at.%) in hot-rolled state and explored the potential of strengthening this MEA by forming hard sigma phase via tempering within the temperature range of 400-900 degrees C. Severe embrittlement is observed when the MEA is tempered at between 700 degrees C and 800 degrees C. Microstructural characterisation reveals that sigma phase with a lamellar morphology is formed via a diffusion-controlled process. The severe embrittlement results from the intrinsic brittleness of sigma phase and the lamellar morphology that provides continuous paths for crack propagation.
关键词	heat treatment phase transformation intermetallic compound embrittlement medium-entropy alloy
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
资助项目	National Natural Science Foundation of China[2020B1515130007] ; Guangdong Basic and Applied Basic Research Foundation of China[U52071173] ; Songshan Lake Materials Laboratory[JCYJ20210324120209026] ; Science and Technology Innovation Commission of Shenzhen[2019QN01C435]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001225554400001
出版者	SAGE PUBLICATIONS INC
ESI学科分类	MATERIALS SCIENCE
来源库	Web of Science
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/788407
专题	工学院_机械与能源工程系
作者单位	1.Songshan Lake Mat Lab, Dongguan, Peoples R China 2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
第一作者单位	机械与能源工程系
通讯作者单位	机械与能源工程系
推荐引用方式 GB/T 7714	Zuo, You,Pan, Shuai,He, Binbin,et al. Sigma phase embrittlement in a tempered Fe₄₅Cr₂₅Ni₁₀Mn₁₅Al₄C₁ medium-entropy alloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,2024.
APA	Zuo, You,Pan, Shuai,He, Binbin,&Liang, Zhiyuan.(2024).Sigma phase embrittlement in a tempered Fe₄₅Cr₂₅Ni₁₀Mn₁₅Al₄C₁ medium-entropy alloy.MATERIALS SCIENCE AND TECHNOLOGY.
MLA	Zuo, You,et al."Sigma phase embrittlement in a tempered Fe₄₅Cr₂₅Ni₁₀Mn₁₅Al₄C₁ medium-entropy alloy".MATERIALS SCIENCE AND TECHNOLOGY (2024).