Effect of selective atomic clustering, surface texture and grain boundary constitution on the corrosion behaviour of electrodeposited Sn-xBi coatings

被引：29
作者：
Singh, Akhand Pratap [1 ]
Srivastava, Chandan [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, India
来源：
CORROSION SCIENCE | 2023年 / 215卷
关键词：
Sn-Bi coatings; Corrosion; Atomic clustering texture grain boundary; constitution; LEAD-FREE SOLDERS; TIN; BI; ALLOY; FILM; MICROSTRUCTURE; HYDROQUINONE; SPECTROSCOPY; PASSIVATION; TEMPERATURE;
D O I：
10.1016/j.corsci.2023.111039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sn-xBi (x = 4, 7, 10, 14, and 17 wt%) coatings were electrodeposited onto mild steel to elucidate their corrosion behaviour. The B14 (Sn-14 wt% Bi) and B7 (Sn-7 wt% Bi) coating exhibited the highest (Polarization resistance (Rp) = 12,810.2 Omega center dot cm(2)) and least corrosion resistance (Rp = 2843.2 Omega center dot cm(2)), respectively. B14 coating exhibited the lower energy near (301) plane orientation against B7 coating which showed higher energy (321) and (111) plane orientation along the exposed surface. The galvanic coupling effect alleviated in B14 coating due to Sn nanoclusters into Bi grains as revealed by the atom probe tomography analysis.
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页数：12
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