退火温度对大变形热轧AZ31镁合金板材力学性能的影响  

Effect of annealing on mechanical properties of AZ31 magnesium alloys sheet after hot rolling

作　　者：王伯健[1] 徐萍[1] 李姗[2] 刘长瑞[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055 [2]西安煤炭科学研究总院西安研究院,陕西西安710077

出　　处：《轻合金加工技术》2009年第9期40-42,57,共4页Light Alloy Fabrication Technology

摘　　要：采用热挤压态AZ31变形镁合金板坯,研究了退火温度对大变形热轧AZ31变形镁合金板材力学性能的影响。结果表明:随着退火温度的升高,变形镁合金板材的抗拉强度和屈服强度减小,伸长率呈线性增加趋势,硬度和杯突值均降低。变形镁合金板材的力学性能与其晶粒尺寸和组织均匀性密切相关。In this paper, AZ31 magnesium alloy slab by hot extrusion was used to investigate the influence of annealing temperature on mechanical properties of severe deforming AZ31 magnesium alloy sheet after hot rolling. It is indicated that as annealing temperature incresed, both tensile strength and yield strength decreased, and elongation showed linear increase, furthermore, microhardness and cupping value reduced. The mechanical properties of AZ31 magnesium alloy sheet were closely related to grain size and microstructure uniformity.

关 键 词：AZ31镁合金 退火温度 大变形 力学性能 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG339[金属学及工艺—金属材料]