The effects of 0.5 wt% In as well as 0.5 wt% In and 1 wt% Zn double (In & Zn) additions to eutectic Sn58Bi alloy on the microstructure and mechanical properties were investigated. Newly designed In & Zn-added Sn58Bi alloy showed much finer microstructure than eutectic Sn58Bi and In-added Sn58Bi alloys. The elongation improvements of 36% and 41% before and after 1008 h aging were obtained in In & Zn-added Sn58Bi alloy compared to eutectic Sn58Bi alloy. Nanoindentation tests revealed that In had solid solution softening (SSS) effect on Sn phase. A hardness decrease and a large creep displacement obtained in both In- and In & Zn-added Sn58Bi served as evident of the SSS. The effects of Zn and In were combined responsible for the elongation improvement of In & Zn-added Sn58Bi.
|Journal||Journal of Materials Science: Materials in Electronics|
|Publication status||Published - 1 Jan 2019|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering