Effect of Sr Addition on the Microstructure of Mg-6Zn-2Al-2Ca Alloy
2011 ◽
Vol 391-392
◽
pp. 993-997
The effect of Sr addition on microstructure evolution of Mg-6Zn-2Al-2Ca-xSr (x=0.5, 1, 2, 3)alloys were investigated by using scanning electron microscope (SEM), X-ray diffraction (XRD) and optical microscope. The result show that Sr constitutional under cooling can significantly refined microstructure of alloys and formed rod-shaped Al4Sr phase in Mg-6Zn-2Al-2Ca alloys, while alloy microstructure turned to be coarse with further increase in Sr content. The addition of Sr slows down the precipitation power of Mg-6Zn-2Al-2Ca alloys and inhabits the β phase continuous precipitation.
2014 ◽
Vol 685
◽
pp. 37-42
2013 ◽
Vol 785-786
◽
pp. 86-90