Investigation of Electrochemical Migration of Tin and Tin-Based Lead-Free Solder Alloys under Chloride-Containing Thin Electrolyte Layers

被引：7
|
作者：
Jiang, Shuyi [1 ]
Liao, Bokai [2 ]
Chen, Zhenyu [2 ]
Guo, Xingpeng [2 ]
机构：
[1] Hubei Univ Technol, Sch Ind Design, Wuhan 430068, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Wuhan 430074, Hubei, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2018年 / 13卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Solder alloy; Corrosion; Electrochemical migration; dendrite; IN-SITU; SN SOLDER; CU; LIFETIMES; IONS; NACL;
D O I：
10.20964/2018.10.13
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical migration behaviors of pure tin and tin-based lead-free solder alloys under thin electrolyte layers containing chloride ions were investigated. Impacts of the applied bias voltage and thickness of electrolyte layer on the electrochemical migration processes were studied in detail. Results showed that the mean time to failure first increased and then decreased with increasing electrolyte- layer thickness. The maximum value of failure time was presented at a 200-mu m-thickness. The higher bias voltage was applied, the faster rate of dendrite growth was. The migration element of tin-based lead-free solder alloys was tin and the formed dendrites displayed tree- and feather-like structures. Mechanisms relevant have been proposed to explain the electrochemical migration behaviors of tin and tin based solder alloys.
引用
收藏
页码：9942 / 9949
页数：8
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