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In-situ EIS study on the initial corrosion evolution behavior of SAC305 solder alloy covered with NaCl solution

文献类型:期刊论文

作者Qiao, Chuang2,5; Wang, Mingna1; Hao, Long4,5; Jiang, Xiaolin2; Liu, Xiahe2; Thee, Chowwanonthapunya3; An, Xizhong2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2021-01-25
卷号852页码:12
关键词SAC305 solder Marine atmosphere Atmospheric corrosion Comb-like electrode Corrosion evolution
ISSN号0925-8388
DOI10.1016/j.jallcom.2020.156953
通讯作者Hao, Long(chinahaolong@126.com)
英文摘要The corrosion performance of SAC305 solder joints is closely related to the working efficiency and lifespan of electronic devices. Available studies on corrosion of SAC305 solder have seldom concentrated on its initial corrosion evolution behavior, which is critical in understanding its corrosion behavior in the long run. In this work, comb-like electrodes have been designed for in situ EIS measurements to investigate the initial corrosion evolution process of SAC305 solder covered with 3.5 wt.% NaCl solution, and Raman, XRD, SEM and EPMA have also been employed to characterize the formed corrosion product layer. The results indicate that the initial corrosion evolution behavior of SAC305 solder mainly involves four stages, i.e. the corrosion degradation of the pre-existing SnO2 protective film in a short duration in contact with NaCl solution, the anodically dissolved Sn2+ undergoes hydrolysis under the effect of Cl- in electrolyte to form stannous hydroxychloride intermediates of various structures, the formation of Sn3O2(OH)(2) from stannous hydroxychloride intermediates after Cl- releasing, and finally the formation of nano-SnO2 particles from Sn3O2 (OH)(2) after steps of dehydration and oxidation. Meanwhile, the acidified NaCl electrolyte can make the formed SnO2 slightly dissolved and favors the formation of SnCl4 center dot 4H(2)O crystals. These findings clearly demonstrate the initial corrosion evolution behavior and corrosion product formation mechanism of SAC305 solder, and are expected to provide potential guidelines on maintenance of microelectronic devices in marine atmosphere. (C) 2020 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[51601057] ; Marine Science Special Project of Hebei Normal University of Science Technology[2018HY004]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000579878700036
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China ; Marine Science Special Project of Hebei Normal University of Science Technology
源URL[http://ir.imr.ac.cn/handle/321006/141016]  
专题金属研究所_中国科学院金属研究所
通讯作者Hao, Long
作者单位1.Hebei Normal Univ Sci & Technol, Dept Phys, Qinhuangdao 066004, Hebei, Peoples R China
2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
3.Kasetsart Univ, Fac Int Maritime Studies, Sriracha 20230, Chonburi, Thailand
4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
5.Chinese Acad Sci, Environm Corros Ctr Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714
Qiao, Chuang,Wang, Mingna,Hao, Long,et al. In-situ EIS study on the initial corrosion evolution behavior of SAC305 solder alloy covered with NaCl solution[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,852:12.
APA Qiao, Chuang.,Wang, Mingna.,Hao, Long.,Jiang, Xiaolin.,Liu, Xiahe.,...&An, Xizhong.(2021).In-situ EIS study on the initial corrosion evolution behavior of SAC305 solder alloy covered with NaCl solution.JOURNAL OF ALLOYS AND COMPOUNDS,852,12.
MLA Qiao, Chuang,et al."In-situ EIS study on the initial corrosion evolution behavior of SAC305 solder alloy covered with NaCl solution".JOURNAL OF ALLOYS AND COMPOUNDS 852(2021):12.

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来源:金属研究所

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