Ma, Xue and Li, Liangfeng and Zhang, Zuhua and Wang, Hao and Wang, Enze and Qiu, Tai (2015) Effects of rare earth La on microstructure and properties of Ag-21Cu-25Sn alloy ribbon prepared by melt spinning. Materials and Design, 83. pp. 1-5. ISSN 0264-1275
Abstract
Ag-21Cu-25Sn alloy ribbon as a promising intermediate temperature alloy solder (400-600°C) was prepared by melt spinning technique in this paper. Rare earth La was added into Ag-21Cu-25Sn alloy to refine the microstructures and improve the wettabilities of as-prepared alloy solders. The phase constitutions, microstructures, melting temperatures and wettabilities of selected specimens were respectively tested. The results showed that the dominant phase constitutions of Ag-21Cu-25Sn-xLa alloy ribbons were Ag3Sn and Cu3Sn. The grain size of Ag-21Cu-25Sn-xLa alloy decreased with the addition of La increasing. La addition reduced the melting temperatures of Ag-21Cu-25Sn-xLa alloy ribbons, and effectively improved the wettabilities of the alloy ribbons. When the addition of La was 0.5wt%, the wettability of as-prepared alloy solder achieved the optimal value of 158cm2g-1 under brazing temperature 600°C and dwell time 15min. In addition, raising brazing temperature and prolonging dwell time could improve the wettability of Ag-21Cu-25Sn-xLa alloy ribbon.
|
Statistics for this ePrint Item |
| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | © 2015 Elsevier Ltd. Permanent restricted access to Published version in accordance with the copyright policy of the publisher. |
| Faculty / Department / School: | Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering |
| Date Deposited: | 24 Feb 2016 06:27 |
| Last Modified: | 02 Aug 2016 04:52 |
| Uncontrolled Keywords: | Ag–Cu–Sn alloy; rare earth La; melting temperature; wettability; melt spinning technique |
| Fields of Research : | 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials 03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030602 Chemical Thermodynamics and Energetics 09 Engineering > 0912 Materials Engineering > 091207 Metals and Alloy Materials |
| Identification Number or DOI: | 10.1016/j.matdes.2015.05.083 |
| URI: | http://eprints.usq.edu.au/id/eprint/28890 |
Actions (login required)
 |
Archive Repository Staff Only |