南方科技大学知识苑(SUSTech KC): Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms

题名	Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms
作者	Pan, S.1,2 ; Shang, X. K.2 ; He, B. B.2 ; Huang, M. X.1
通讯作者	He, B. B.; Huang, M. X.
发表日期	2022
DOI	10.1063/5.0073336
发表期刊	AIP ADVANCES 影响因子和分区
EISSN	2158-3226
卷号	12 期号:1
摘要	In general, annealing treatment is frequently used to recover the ductility of high/medium entropy alloys after deformation. However, the present work demonstrates that the ductility of a CoCrNiVC medium entropy alloy could be substantially reduced after the tempering process, which is similar to the tempering embrittlement in some steels. Numerous carbides with chromium enrichment are formed at the shear bands and grain boundaries during tempering at 700 degrees C for 30 min. The carbides embedded at grain boundaries result in a localized strain concentration during plastic deformation, facilitating the nucleation of the micro-cracks. The segregation of carbon at the grain boundary decreases its cohesion energy, accelerating the propagation of cracks and the development of intergranular fracture.
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 Key Research and Development Program of China[2019YFA0209900] ; National Natural Science Foundation of China["U52071173","U1764252"] ; Research Grants Council of Hong Kong["R7066-18",17255016,17210418] ; Science and Technology Innovation Commission of Shenzhen["JCYJ20210324120209026","KQTD2019092917250571"]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000744937300006
出版者	AIP Publishing
EI入藏号	20220511550772
EI主题词	Carbides ; Carbon ; Chromium alloys ; Cobalt alloys ; Cracks ; Ductility ; Embrittlement ; Entropy ; Grain boundaries ; High-entropy alloys ; Iron alloys ; Textures
EI分类号	Metallurgy and Metallography:531 ; Heat Treatment Processes:537.1 ; Chromium and Alloys:543.1 ; Iron Alloys:545.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Ceramics:812.1 ; Materials Science:951
来源库	Web of Science
引用统计	被引频次[WOS]：1
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/273653
专题	工学院_机械与能源工程系
作者单位	1.Univ Hong Kong, Dept Mech Engn, Pokfulam Rd, Hong Kong, 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	Pan, S.,Shang, X. K.,He, B. B.,et al. Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms[J]. AIP ADVANCES,2022,12(1).
APA	Pan, S.,Shang, X. K.,He, B. B.,&Huang, M. X..(2022).Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms.AIP ADVANCES,12(1).
MLA	Pan, S.,et al."Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms".AIP ADVANCES 12.1(2022).