冷变形对5052铝合金板材力学性能及制耳率的影响  

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

作　　者：曾招芬 齐文刚 赵富有 康跃民 王雪萍 张义 Zeng Zhaofen;Qi Wengang;Zhao Fuyou;Kang Yuemin;Wang Xueping;Zhang Yi(Zhongwang(Yingkou)Gaojing Aluminum Co.,Ltd.,Yingkou Liaoning 115003,China;Tianjin Zhongwang Aluminum Industry Co.,Ltd.,Tianjin 301700,China)

机构地区：[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

出　　处：《金属热处理》2022年第10期208-210,共3页Heat Treatment of Metals

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。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.

关 键 词：5052铝合金 冷变形率 晶粒尺寸 力学性能 制耳率 

分 类 号：TG146.2[一般工业技术—材料科学与工程]