变形镁合金AZ31锻-轧变形工艺对组织性能影响（改好）
Effect of forging and rolling process on microstructure andmechanical properties of wrought magnesium alloy AZ31
陈建祥，刘长瑞，王庆娟
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作者单位：西安建筑科技大学
中文关键字：AZ31镁合金；锻造；轧制
英文关键字：AZ31magnesium alloy; forging ;rolling
中文摘要：对变形镁合金AZ31进行了宽向和高向锻造，然后进行轧制，检测了不同锻造比的板坯经轧制后的组织性能变化。结果表明：锻造时，随着锻造比的增大，晶粒组织逐渐细化；当锻造比为1.67时，材料的硬度达到最大为84.4HV，当锻造比为1.82时，材料的硬度为78.9 HV；晶粒大小对动态再结晶晶粒尺寸有很大影响，晶粒尺寸较大时，再结晶晶粒尺寸也较大；锻造比为1.82的试样经轧制变形后，可以获得良好的机械性能。其晶粒平均尺寸、抗拉强度和延伸率为分别为3.7µm、281.75MPa、12.7%。
英文摘要：In this paper the wrought magnesium alloy AZ31 were forged under wide and high, then rolling on high. the change of microstructure andmechanical properties after different forging ratio was study. The magnesium alloy AZ31 with more fine homogeneous microstructure with forging ratio increasing by forging; The forged specimen which then forging ratio was 1.67 has the maximum hardness, 84.4HV,with the forging ratio increasing, The hardness of the materials decreases when the orging ratio was 1.82,was 78.9 HV; the grain size have a great effect on the dynamic recrystallization grain, with the increasing of grain, the recrystallization grain also increasing; the sample with the forging ratio 1.82 by deformation of rolling can obtain good mechanical properties, which average grain size,tensile strength and elongation,3.7µm, 281.75MPa,12.7%.