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

文献类型：期刊论文

作者Hu, Jiaxiu1,2; Zhang, Lianmin2; Ma, Aili2; Mao, Pingli1; Zheng, Yugui2
刊名METALS
出版日期2022-02-01
卷号12期号:2页码:12
关键词316L stainless steel cavitation erosion cavitation intensity passive films repassivation property
DOI10.3390/met12020198
通讯作者Zhang, Lianmin(lmzhang14s@imr.ac.cn) ; Mao, Pingli(pinglimao@yahoo.com)
英文摘要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.
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
语种英语
出版者MDPI
WOS记录号WOS:000762790000001
资助机构National Natural Science Foundation of China ; Chinese Postdoctoral Science Foundation ; China National Nuclear Corporation (CNNC) Science Fund for Talented Young Scholars
源URL[http://ir.imr.ac.cn/handle/321006/173225]  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

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