金属热处理 ›› 2022, Vol. 47 ›› Issue (10): 208-210.DOI: 10.13251/j.issn.0254-6051.2022.10.035

• 工艺研究 • 上一篇    下一篇

冷变形对5052铝合金板材力学性能及制耳率的影响

曾招芬1, 齐文刚1, 赵富有1, 康跃民1, 王雪萍2, 张义2   

  1. 1.忠旺(营口)高精铝业有限公司, 辽宁 营口 115003;
    2.天津忠旺铝业有限公司, 天津 301700
  • 收稿日期:2022-05-16 修回日期:2022-08-15 出版日期:2022-10-25 发布日期:2022-12-15
  • 作者简介:曾招芬(1990—),男,工程师,硕士,主要研究方向为铝合金加工及其制造,E-mail:zengzhaofen10@126.com

Effect of cold deformation on mechanical properties and earing rate of 5052 aluminum alloy sheet

Zeng Zhaofen1, Qi Wengang1, Zhao Fuyou1, Kang Yuemin1, Wang Xueping2, Zhang Yi2   

  1. 1. Zhongwang (Yingkou) Gaojing Aluminum Co., Ltd., Yingkou Liaoning 115003, China;
    2. Tianjin Zhongwang Aluminum Industry Co., Ltd., Tianjin 301700, China
  • Received:2022-05-16 Revised:2022-08-15 Online:2022-10-25 Published:2022-12-15

摘要: 利用光学显微镜、拉伸试验机及制耳率测试仪研究了冷变形对5052铝合金板材晶粒尺寸、力学性能及制耳率的影响。结果表明,5052铝合金冷轧板材的屈服强度与冷变形率呈线性关系,10%的变形量引起的抗拉强度的变化约为20 MPa,屈服强度的变化约为15 MPa。经再结晶退火后,退火板的晶粒尺寸与冷变形率及屈服强度均呈线性关系。冷变形率在50%~60%时,退火板的制耳率及平面各向异性指数Δr值均较小。

关键词: 5052铝合金, 冷变形率, 晶粒尺寸, 力学性能, 制耳率

Abstract: Effect of cold deformation on grain size, mechanical properties and earing rate of 5052 aluminum alloy sheet was studied by metallographic microscope, tensile testing machine and earing rate tester. The results show that the yield strength of the 5052 aluminum alloy cold-rolled sheet has a linear relationship with the cold deformation rate. The change of tensile strength and yield strength caused by 10% deformation is about 20 MPa and 15 MPa, respectively. After recrystallization annealing, the grain size of the annealed sheet has a linear relationship with the cold deformation rate and yield strength. When the cold deformation rate is 50%-60%, the earing rate and plane anisotropy index Δr of the annealed sheet is smaller.

Key words: 5052 aluminum alloy, cold deformation rate, grain size, mechanical properties, earing rate

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