南方科技大学知识苑(SUSTech KC): Improving anti-corrosion properties of CoCrFeMnNi high entropy alloy by introducing Si into nonmetallic inclusions

题名	Improving anti-corrosion properties of CoCrFeMnNi high entropy alloy by introducing Si into nonmetallic inclusions
作者	Yu, K.P.1,2 ; Feng, S.H.2 ; Ding, C.2 ; Yu, P.2 ; Huang, M.X.1
通讯作者	Yu, P.
发表日期	2022-11
DOI	10.1016/j.corsci.2022.110616
发表期刊	CORROSION SCIENCE 影响因子和分区
ISSN	0010-938X
EISSN	1879-0496
卷号	208
摘要	The microstructures and composition at and around inclusions in casted CoCrFeMnNi alloy were studied. It was found that the Cr-depletion zone caused by the formation of MnO·Cr2O3 was responsible for the corrosive catastrophe of the alloy. Si was introduced in the alloy to modify the microstructure and composition of the inclusions. Instead of forming harmful MnO·Cr2O3, stable amorphous MnO-SiO2 was formed in the Si-added CoCrFeMnNi, eliminating the Cr-depletion zone. Consequently, the corrosion resistance of the Si-added CoCrFeMnNi was largely improved. The present work reveals a way of increasing corrosion resistance by modifying inclusions that disrupt the homogeneity of passive films. Data availability statement: All research data supporting this publication are directly available within this publication. © 2022 Elsevier Ltd
关键词	High entropy alloy Corrosion resistance Inclusions Silicon Cr-depletion zone
相关链接	[来源记录]
收录类别	EI ; SCI
语种	英语
学校署名	通讯
资助项目	M.X. Huang acknowledges the ﬁnancial support from the National Key Research and Development Program of China (No. 2019YFA0209900 ), National Natural Science Foundation of China (No. U1764252 ), and Research Grants Council of Hong Kong (No. R7066-18 ). P. Yu acknowledges the support from The Shenzhen Science and Technology Innovation Committee (Grant No. KQJSCX20180322152424539 ). Z. Shen is acknowledged for his constructive suggestions on the paper.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000861367800002
出版者	Elsevier Ltd
EI入藏号	20223612685155
EI主题词	Chromium alloys ; Cobalt alloys ; Corrosion resistant alloys ; Entropy ; High-entropy alloys ; Iron alloys ; Manganese alloys ; Manganese oxide ; Microstructure ; Silica ; Silicon alloys ; Silicon oxides
EI分类号	Metallurgy and Metallography:531 ; Metals Corrosion:539.1 ; Chromium and Alloys:543.1 ; Manganese and Alloys:543.2 ; Iron Alloys:545.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Chemical Products Generally:804 ; Materials Science:951
ESI学科分类	MATERIALS SCIENCE
来源库	EV Compendex
引用统计	被引频次[WOS]：28
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/401580
专题	工学院_材料科学与工程系
作者单位	1.Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 2.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
第一作者单位	材料科学与工程系
通讯作者单位	材料科学与工程系
推荐引用方式 GB/T 7714	Yu, K.P.,Feng, S.H.,Ding, C.,et al. Improving anti-corrosion properties of CoCrFeMnNi high entropy alloy by introducing Si into nonmetallic inclusions[J]. CORROSION SCIENCE,2022,208.
APA	Yu, K.P.,Feng, S.H.,Ding, C.,Yu, P.,&Huang, M.X..(2022).Improving anti-corrosion properties of CoCrFeMnNi high entropy alloy by introducing Si into nonmetallic inclusions.CORROSION SCIENCE,208.
MLA	Yu, K.P.,et al."Improving anti-corrosion properties of CoCrFeMnNi high entropy alloy by introducing Si into nonmetallic inclusions".CORROSION SCIENCE 208(2022).