Zhang Z.-G.,Jinan Foundry and Metal forming Research Institute Co. |
Zhang J.-S.,Taiyuan University of Technology |
Ding S.-P.,Jinan Foundry and Metal forming Research Institute Co. |
Shi X.-Q.,Jinan Foundry and Metal forming Research Institute Co. |
And 2 more authors.
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2013
The Al-Ce-Sb-Ti master alloy was prepared by vacuum melting to refine the grains of Mg-Zn-Al alloys. The results show that Mg-10Zn-5Al (ZA105) magnesium alloy with appropriate addition of Al-Ce-Sb-Ti master alloy contains lots of hard particles which gather in the front of solid-liquid interface, preventing the growth of the second phase and improving the microstructure of ZA105 magnesium alloy. At the same time, the hard particles are taken as nucleation sites of ZA105 magnesium alloy to refine its grain size. With proper addition of master alloy, the grain size grade of ZA105 magnesium alloy is improved from 4 level to 6 level.