Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution

doi:10.3390/met12020198

IMR OpenIR

	Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution
	Hu, Jiaxiu 1,2; Zhang, Lianmin 2; Ma, Aili 2; Mao, Pingli 1; Zheng, Yugui 2
通讯作者	Zhang, Lianmin(lmzhang14s@imr.ac.cn) ; Mao, Pingli(pinglimao@yahoo.com)
	2022-02-01
发表期刊	METALS
卷号	12 期号:2 页码:12
摘要	In this study, the cavitation erosion behavior of 316L stainless steel under different cavitation intensities in 3.5 wt.% NaCl solution was investigated with scanning electron microscopy and various electrochemical tests. Results indicated that cavitation intensity corresponding to CE amplitude of 5 mu m was lower than that of the mechanical bearing capacity of passive films. When subjected to cavitation erosion (CE), Open circuit potential (OCP) shifted to the noble direction instantaneously, which was mainly attributed to enhanced oxygen transfer of the cathode due to stirring effects of CE. By contrast, high cavitation intensities corresponding to CE amplitudes of 25 mu m and 55 mu m exceeded the mechanical bearing capacity of passive films, causing significantly reduced OCP associated with metal dissolution of the anode from mechanical damage. Potentiostatic polarization and Mott-Schottky tests showed that 316L SS subjected to low cavitation intensities displayed good repassivation properties. However, repassivation performance was markedly weakened when high cavitation intensity was applied, resulting in weaker protection of the passive films with high carrier density.
关键词	316L stainless steel cavitation erosion cavitation intensity passive films repassivation property
资助者	National Natural Science Foundation of China ; Chinese Postdoctoral Science Foundation ; China National Nuclear Corporation (CNNC) Science Fund for Talented Young Scholars
DOI	10.3390/met12020198
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52101105] ; Chinese Postdoctoral Science Foundation[2020M670811] ; China National Nuclear Corporation (CNNC) Science Fund for Talented Young Scholars
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000762790000001
出版者	MDPI
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173226
专题	中国科学院金属研究所
通讯作者	Zhang, Lianmin; Mao, Pingli
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hu, Jiaxiu,Zhang, Lianmin,Ma, Aili,et al. Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution[J]. METALS,2022,12(2):12.
APA	Hu, Jiaxiu,Zhang, Lianmin,Ma, Aili,Mao, Pingli,&Zheng, Yugui.(2022).Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution.METALS,12(2),12.
MLA	Hu, Jiaxiu,et al."Effect of Cavitation Intensity on the Cavitation Erosion Behavior of 316L Stainless Steel in 3.5 wt.% NaCl Solution".METALS 12.2(2022):12.