Influence of Ag and Zn on the Microstructure and Properties of Sn-40 Bi Alloy for Improved Soldering Applications
Yu-An Shen
Abstract:In this study, the effect of adding 2 wt % of Ag and Zn on the microstructural characteristics and properties of Sn−40 Bi alloy (SB40), focusing on mechanical, thermal, and soldering behaviors, was investigated. Microstructural analyses revealed Snand Bi-rich phases in SB40, SBA402, and SBZ402. Notably, SBZ402 exhibited a needle-like Zn-rich phase, while SBA402 contained a small amount of Ag 3 Sn. SBA402 exhibited the highest tensile strength of 78.1 MPa, which can be attributed to its finer microstructure and… Show more
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