Microstructure and Tensile Properties of an Mg-5Sn-5Zn Alloy
The microstructure and tensile properties at room temperature of as-cast, solution-treated and aged samples of a Mg-5Sn-5Zn (wt%) alloy are investigated. The microstructure of the as-cast sample consists of -Mg primary, Mg-MgZn eutectic, divorced eutectic Mg2Sn and secondary precipitation Mg2Sn. After solution treatment, all the MgZn particles and the majority of Mg2Sn phases are dissolved into the matrix and the tensile strength and the elongation of the alloy increase obviously. During aging process many fine particles precipitate which result in the improvement of the yield strength.
Jian-Feng Nie and Allan Morton
J. X. Zhou et al., "Microstructure and Tensile Properties of an Mg-5Sn-5Zn Alloy", Materials Science Forum, Vols. 654-656, pp. 639-642, 2010