高级检索
    张蓉, 钱书琨. 轧制温度对交叉轧制AZ31镁合金板材显微组织和力学性能的影响[J]. 机械工程材料, 2013, 37(10): 13-16.
    引用本文: 张蓉, 钱书琨. 轧制温度对交叉轧制AZ31镁合金板材显微组织和力学性能的影响[J]. 机械工程材料, 2013, 37(10): 13-16.
    ZHANG Rong, QIAN Shu-kun. Effects of Rolling Temperature on Microstructure and Mechanical Properties of AZ31 Sheets Fabricated by Cross-Rolling[J]. Materials and Mechanical Engineering, 2013, 37(10): 13-16.
    Citation: ZHANG Rong, QIAN Shu-kun. Effects of Rolling Temperature on Microstructure and Mechanical Properties of AZ31 Sheets Fabricated by Cross-Rolling[J]. Materials and Mechanical Engineering, 2013, 37(10): 13-16.

    轧制温度对交叉轧制AZ31镁合金板材显微组织和力学性能的影响

    Effects of Rolling Temperature on Microstructure and Mechanical Properties of AZ31 Sheets Fabricated by Cross-Rolling

    • 摘要: 通过交叉轧制工艺制备了组织均匀的AZ31镁合金板材, 并研究了轧制温度对板材晶粒尺寸、织构和力学性能的影响。结果表明: 交叉轧制工艺可以有效细化合金组织, 提高基面织构的均匀性; 通过降低轧制温度可降低板材的平均晶粒尺寸和基面织构最大极密度, 从而有效提高板材综合力学性能; 轧制温度为250 ℃时, 板材的平均晶粒尺寸和最大极密度分别为4 μm和8.4, 此时其综合力学性能最佳, 抗拉强度、屈服强度和伸长率分别为301.0 MPa, 220.2 MPa和30.1%。

       

      Abstract: AZ31 alloy sheets with homogeneous microstructure were successfully fabricated by cross-rolling, and the effects of rolling temperature on grain size, texture and mechanical properties were investigated. The results show that the cross-rolling technology could effectively refine the microstructure of the alloy, and improved the homogeneousness of texture. The average grain size and maximum pole density decreased with the decreasing of deformation temperature, resulting in a good comprehensive mechanical property of sheets consequently. The average grain size and maximum pole density of AZ31 sheet cross-rolled at 250 ℃ were 4 μm and 8.4, respectively. The best comprehensive mechanical property which gave the ultimate tensile strength (UTS), yield strength (YS) and elongation of the sheets were 301.0 MPa, 220.2 MPa and 30.1%, respectively, at rolling temperature of 250 ℃.

       

    /

    返回文章
    返回