Effect of Si Addition on Structure and Corrosion Resistance of FeCoNiCr High-Entropy Alloy Coating

doi:10.3390/ma18010072

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	Effect of Si Addition on Structure and Corrosion Resistance of FeCoNiCr High-Entropy Alloy Coating
	Li, Wenqiang 1,2; Lian, Jie 3; Wang, Dengfeng 3; Zhang, Suo 3; Han, Chengfu 1; Du, Zhenyu 1; Li, Fushan 1
	2025-01
发表期刊	MATERIALS
卷号	18 期号:1
摘要	In this study, Fe60Co10-xNi15Cr15Six (x = 0, 4, and 8) powders were successfully prepared using the aerosol method and employed to produce high-entropy coatings on Q235 steel via laser cladding. The microstructure and phase composition of the coatings were analyzed using scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. Corrosion resistance and potential were evaluated through electrochemical analysis and Kelvin probe force microscopy. The results show that the Fe60Co10-xNi15Cr15Six coatings exhibit excellent metallurgical bonding with no visible porosity or cracks. The coating primarily consists of an FCC structure; however, as the Si content increases, the structure transitions to a mixed FCC + BCC phase. The addition of Si also refines the grain size in the alloy system. Electrochemical analysis reveals that the Si0 and Si4 coatings exhibit similar corrosion behavior, while the Si8 coating shows a significant drop in corrosion potential, reducing its corrosion resistance. As the Si content increases, grain refinement leads to more grain boundaries, but the corrosion resistance decreases due to the lower corrosion performance of Si compared to Co. Considering both cost and corrosion resistance, the Si4 coating offers a balance of low cost and excellent corrosion resistance.
关键词	laser cladding high-entropy alloy microstructure analysis corrosion resistance coating
其他关键词	MICROSTRUCTURE
DOI	10.3390/ma18010072
收录类别	SCIE
语种	英语
资助项目	Doctoral Research Start-up Fund of Henan Open University; National Natural Science Foundation of China [52101203]; Education Department of Henan Province [23A430014]; Nuclear Material Technology Innovation Fund for National Defense Technology Industry [ICNM-2023-YZ-02]; [BSJH-2024-08]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001393650800001
出版者	MDPI
原始文献类型	Article
EISSN	1996-1944
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.library.ouchn.edu.cn/handle/39V7QQFX/174281
专题	国家开放大学
通讯作者	Zhang, Suo; Li, Fushan
作者单位	1.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China; 2.Henan Coal Sci Acad Wear Resistant Technol Co Ltd, Zhengzhou 450001, Peoples R China; 3.Henan Open Univ, Sch Mech & Elect Engn & Intelligent Mfg, Zhengzhou 450008, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenqiang,Lian, Jie,Wang, Dengfeng,et al. Effect of Si Addition on Structure and Corrosion Resistance of FeCoNiCr High-Entropy Alloy Coating[J]. MATERIALS,2025,18(1).
APA	Li, Wenqiang.,Lian, Jie.,Wang, Dengfeng.,Zhang, Suo.,Han, Chengfu.,...&Li, Fushan.(2025).Effect of Si Addition on Structure and Corrosion Resistance of FeCoNiCr High-Entropy Alloy Coating.MATERIALS,18(1).
MLA	Li, Wenqiang,et al."Effect of Si Addition on Structure and Corrosion Resistance of FeCoNiCr High-Entropy Alloy Coating".MATERIALS 18.1(2025).