Effects of heat treatment on the nano-indentation, corrosion and cavitation erosion behavior of 17-4PH stainless steel by laser surface melting

doi:10.1016/j.surfcoat.2024.130821

IMR OpenIR

	Effects of heat treatment on the nano-indentation, corrosion and cavitation erosion behavior of 17-4PH stainless steel by laser surface melting
	Yu, D. T.1; Wu, C. L.1; Zhang, S.1; Zhang, C. H.1; Chen, H. T.2; Tao, X. P.3
通讯作者	Wu, C. L.(mfclwu@sut.edu.cn) ; Tao, X. P.(xptao19b@imr.ac.cn)
	2024-05-30
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	484 页码:14
摘要	The effects of heat treatment on the microstructure, residual stresses, nano-indentation behavior, the resistance to the corrosion and cavitation erosion (CE) of 17-4PH stainless steel (17-4PH SS) by laser surface melting (LSM) were thoroughly investigated. Experimental results showed that the samples were mainly composed of martensite phase, and the NbC precipitations formed after heat treatment. The distribution of NbC precipitations was more uniform in the sample (S3) after solution treatment 3 h at 1040 degrees C + aging treatment 3 h at 480 degrees C. The grain size was increased for the samples after heat treatment. This heat treatment processing significantly reduced the residual stresses generated from the LSM process, and the nano-indentation behavior of the LSM samples after heat treatment was improved compared to that of the LSM sample without heat treatment. The S3 sample displayed the highest corrosion resistance as indicated by the low corrosion current density ( i corr ), high pitting potential ( E pit ) and high polarization resistance ( R p ). The CE resistance of samples after heat treatment in 3.5 wt% NaCl solution was higher than that of the sample without heat treatment. Among them, the S3 sample exhibited the highest CE resistance, and its CE mass loss was only 59.5 % of the sample without heat treatment. The excellent CE resistance resulted from the appropriate combination of mechanical properties, corrosion resistance and self-recovery ability of the passivation film.
关键词	Laser surface melting Heat treatment Nano-indentation Corrosion Cavitation erosion
资助者	National Key Research and Development Program of China ; Science and Technology Research Project of Liaoning Province ; Shenyang Science and Technology
DOI	10.1016/j.surfcoat.2024.130821
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2023YFB4606605] ; Science and Technology Research Project of Liaoning Province[LJKQZ2021050] ; Shenyang Science and Technology[22-101-0-16] ; Shenyang Science and Technology[19-109-1-03]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:001238395500001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186715
专题	中国科学院金属研究所
通讯作者	Wu, C. L.; Tao, X. P.
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China 2.Shenyang Dalu Laser Technol CO LTD, Shenyang 110136, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yu, D. T.,Wu, C. L.,Zhang, S.,et al. Effects of heat treatment on the nano-indentation, corrosion and cavitation erosion behavior of 17-4PH stainless steel by laser surface melting[J]. SURFACE & COATINGS TECHNOLOGY,2024,484:14.
APA	Yu, D. T.,Wu, C. L.,Zhang, S.,Zhang, C. H.,Chen, H. T.,&Tao, X. P..(2024).Effects of heat treatment on the nano-indentation, corrosion and cavitation erosion behavior of 17-4PH stainless steel by laser surface melting.SURFACE & COATINGS TECHNOLOGY,484,14.
MLA	Yu, D. T.,et al."Effects of heat treatment on the nano-indentation, corrosion and cavitation erosion behavior of 17-4PH stainless steel by laser surface melting".SURFACE & COATINGS TECHNOLOGY 484(2024):14.