AZ91D镁合金半固态浆料近液相线法制备工艺  

Preparation Technology of AZ91D Mg-alloy Semi-solid Slurry by Near-liquidus Method

作　　者：徐跃[1] 康永林[1] 王朝辉[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《有色金属》2005年第4期1-5,共5页Nonferrous Metals

基　　金：国家"863"计划项目(2002AA336080)

摘　　要：以AZ91D为试验原料,通过改变近液相线的浇铸温度、静置时间等不同的试验参数,研究近液相线法制备半固态浆料的工艺,并对获得的试样进行微观组织、力学性能和断口形貌分析.结果表明,在585℃,静置20～40min后浇铸,能获得较理想的半固态组织,且试样的力学性能较好.The preparing technology for semi-solid slurry by near liquidus method is investigated with experimental material of magnesium alloy AZ91D by adjusting the test parameters such as casting temperature and standing time, and the microstructure, mechanical properties and fracture appearance of the test samples are analyzed. The results show that AZ91D slurry with more perfect semi-solid structure and better mechanical properties can be prepared at 585℃ casting after standing for 20～40 minutes.

关 键 词：金属材料 半固态浆料 近液相线铸造 微观组织 力学性能 断口形貌 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG249.9[金属学及工艺—金属材料]