轧制温度对AZ31B镁合金薄带轧制的边裂及显微组织的影响

发布时间：2018-03-14 05:02

  本文选题：镁合金薄带　切入点：轧制温度　出处：《热加工工艺》2016年21期 　论文类型：期刊论文

【摘要】：在不同轧制温度对AZ31B镁合金薄板进行了温轧,对不同厚度板带的边裂和显微组织进行了观察和分析。通过轧制试验研究了轧制温度对AZ31B镁合金薄带的边裂和显微组织的影响。结果表明:镁合金薄板温轧边裂是由剪切变形引起的。随着轧制温度的升高,裂纹的深度和间隔都大幅度减小,孪晶数量减少,晶粒尺寸增大。在220℃轧制能够有效抑制边裂的产生,并得到较为理想的晶粒组织。
[Abstract]:The AZ31B magnesium alloy sheet was rolled at different rolling temperatures. The effect of rolling temperature on the edge crack and microstructure of AZ31B magnesium alloy strip was studied by rolling test. The results showed that the edge crack of magnesium alloy sheet was warm rolled. Is caused by shear deformation. As the rolling temperature rises, The depth and interval of crack decrease greatly, the number of twins decreases, and the grain size increases. Rolling at 220 鈩，

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