Effect of Temperature in Heat Treatment on Microstructure and Property of Roll-casting Strips for Semi-solid Magnesium
The experiment of the rheocasting-rolling for semi-solid AZ91D magnesium was carried out. Parameters of annealing process and the effect of annealing temperature on structure and hardness of semi-solid magnesium were investigated. It was shown that annealing process can improve the structure and property of rheocasting-rolling strips for semi-solid magnesium. In addition, it can relieve the eutectic structure segregation and make β-Mg17Al12 phase precipitate from primary α-Mg grain, which can cause dispersion strengthening process when the annealing temperature is about 420℃. With the increasing of annealing temperature, hardness in eutectic structure area will increase and then decrease, when the temperature erature is beyond 400℃, it will increase again, but primary α-Mg grain hardness is nearly unchanged.
XU Jinhua ZHANG Ying XIE Shuisheng GENG Maopeng GUO Hongmin ZHAO Haibo
Mechanical and Electric College, Nanchang University, Nanchang330029, Peoples R China State Key Laboratory for Fabrication & Processing of Non-ferrous Metals, General Research Institute
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）