<?xml version="1.0" encoding="UTF-8"?> <article key="pdf/9997891" mdate="2014-03-03 00:00:00"> <author>Jung-Ho Moon and Tae Kwon Ha</author> <title>Effect of Y Addition on the Microstructure and Mechanical Properties of SnZn Eutectic Alloy</title> <pages>232 - 234</pages> <year>2014</year> <volume>8</volume> <number>3</number> <journal>International Journal of Materials and Metallurgical Engineering</journal> <ee>https://publications.waset.org/9997891.pdf</ee> <url>https://publications.waset.org/vol/87</url> <publisher>World Academy of Science, Engineering and Technology</publisher> <abstract>The effect of Yttrium addition on the microstructure and mechanical properties of SnZn eutectic alloy, which has been attracting intensive focus as a Pbfree solder material, was investigated in this study. Phase equilibrium has been calculated by using FactSage&amp;amp;reg; to evaluate the composition and fraction of equilibrium intermetallic compounds and construct a phase diagram. In the case of Sn8.8Zn eutectic alloy, the ascast microstructure was typical lamellar. With addition of 0.25wt.Y, a large amount of proeutectic a phase have been observed and various YZnx intermetallic compounds were expected to successively form during cooling. Hardness of Sn8.8Zn alloy was not affected by Yaddition and both alloys could be rolled by 90 at room temperature. </abstract> <index>Open Science Index 87, 2014</index> </article>