AZ31镁合金二次变形研究  

Study on two-stage deformation of the AZ31 alloy

作　　者：张星[1] 张治民[1] 王智文[1] 

机构地区：[1]中北大学材料科学及工程系,太原030051

出　　处：《塑性工程学报》2006年第3期97-99,107,共4页Journal of Plasticity Engineering

基　　金：国家重大基础研究前期研究专项(2004CCA04600);山西省自然科学基金资助项目(20031045)。

摘　　要：通过对AZ31镁合金铸棒在不同变形参数下进行一次变形和二次变形,并对其组织演变过程和力学性能进行分析讨论。结果表明,经过二次变形,可以显著细化合金的晶粒,其尺寸可由原100μm减少到3μm;二次变形后镁合金的抗拉强度可达390MPa,相对于原始铸态提高约一倍,且延伸率超过10%。The two-stage deformation was processed to AZ31 alloy as cast at different parameter condition, and structure evolution and mechanical property was analyzed. The results indicate that the grain of AZ31 alloy as cast will be fined by the two-stage extrusion deformation, and its size can decreases from about 100μm to 3μm. The strength of AZ31 alloy can be raised by the twostage deformation, up to 390MPa, this is about double than as cast structure. At the same time, the prolongation rate is more than 10% by the two stage deformation.

关 键 词：镁合金 二次变形 强化 

分 类 号：TG142[一般工业技术—材料科学与工程]