A study on the corrosion processes of eutectic Bi-42Sn solder alloy

Authors

  • Nguyễn Đăng Nam Đại học Dầu Khí Việt Nam

DOI:

https://doi.org/10.15625/0866-708X/53/1/3748

Abstract

The change of impedance in the passive, repassive states together with initial pitting process of eutectic Sn-Bi alloy is studied. Anodic polarization measures the passive, pitting, and repassive states to utilize the actual results and to assure the accuracy of the impedance results. X-ray photoelectron spectroscopy indicates that Sn oxides interact with Bi oxides to form a passive film. The dissolution of Bi accounts for the initial pitting and Sn oxides form the repassive film.

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Author Biography

Nguyễn Đăng Nam, Đại học Dầu Khí Việt Nam

Cán bộ nghiên cứu và giảng dạy

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Published

2015-02-27

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Section

Articles