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Susceptibility of Passive Film Stability to the Pore Defect for HVAF-Sprayed Fe-Based Amorphous Coatings

文献类型：期刊论文

作者Li, Tian-Run1,2; Wang, De-Bin1,2; Wang, Qi1,2; Zhang, Suo-De1; Wang, Jian-Qiang1
刊名JOURNAL OF THERMAL SPRAY TECHNOLOGY
出版日期2023-01-31
页码16
关键词amorphous coating electrochemical corrosion passive film pore semiconductor property
ISSN号1059-9630
DOI10.1007/s11666-023-01540-2
通讯作者Zhang, Suo-De(sdzhang@imr.ac.cn) ; Wang, Jian-Qiang(jqwang@imr.ac.cn)
英文摘要It is important to investigate the susceptibility of passive film stability to pore defect in amorphous metal coatings (AMCs). To clarify the correlation, Fe-based AMCs with different porosities were prepared by high velocity air fuel (HVAF) spraying, and their electrochemical properties, semiconductor characteristics, and surface chemistry of the passive film were determined in detail. The results showed that the passivation current density exhibited obvious sensitivity to porosity. It could increase by more than an order of magnitude while the porosity increased by only a factor of 1 (from 0.35 to 0.78 vol.%). This sensitivity was attributed to the increase in point defect density and the decrease in electronic work of the passive film. In addition, the positive shift in the film-forming potential could also increase the passivation current density. This is due to the fact that the passive film inside the pore defects degrades more at a higher film-forming potential. This work inspires us that the porosity should be strictly controlled to ensure a stable passive film in amorphous metal coatings.
资助项目National Natural Science Foundation of China[U1908219] ; National Natural Science Foundation of China[52171163] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000922316800002
出版者SPRINGER
资助机构National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/175187]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhang, Suo-De; Wang, Jian-Qiang
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Li, Tian-Run,Wang, De-Bin,Wang, Qi,et al. Susceptibility of Passive Film Stability to the Pore Defect for HVAF-Sprayed Fe-Based Amorphous Coatings[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2023:16.
APA Li, Tian-Run,Wang, De-Bin,Wang, Qi,Zhang, Suo-De,&Wang, Jian-Qiang.(2023).Susceptibility of Passive Film Stability to the Pore Defect for HVAF-Sprayed Fe-Based Amorphous Coatings.JOURNAL OF THERMAL SPRAY TECHNOLOGY,16.
MLA Li, Tian-Run,et al."Susceptibility of Passive Film Stability to the Pore Defect for HVAF-Sprayed Fe-Based Amorphous Coatings".JOURNAL OF THERMAL SPRAY TECHNOLOGY (2023):16.

入库方式： OAI收割

来源：金属研究所

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