【摘要】 在400℃下对铸态2524铝合金进行轧制成形,总变形量为90%,采用光学金相显微镜、拉伸试验机等设备检测轧制板材显微组织及力学性能.研究结果表明:随着固溶温度的升高,Al2Cu,Al2CuMg等第二相粒子数量逐渐减少,在490℃~500℃下基本固溶进铝基体中,其显微硬度值随着固溶温度的升高逐渐增大,当固溶温度为490℃时其显微硬度值为131.4 HV;2524铝合金轧制板材经490℃/20 min+190℃/22 h处理后,其抗拉强度为485 MPa,延伸率为13.5%.更多还原

【Abstract】 Under the 400℃ of as-cast 2524 aluminum alloy rolling forming, the total deformation of 90%, by using optical metallographic microscope, tensile testing machine and other equipment we detect rolled plate microstructure and mechanical properties. The results show that with the increase of solution temperature, Al2 Cu,Al2CuMg second phase particles gradually reduce the number of basic solution under 490℃ to 500℃ in the aluminum substrate. The microhardness value is gradually increasing with the increase of solution temperature,when the solid solution temperature is 490℃, its microhardness value is 131.4 HV; 2524 aluminum alloy rolled plate after 490℃/20 min +190℃/22 h after treatment, the tensile strength of 485 MPa, the elongation is 13.5%.更多还原