论文部分内容阅读
通过拉伸、剥落腐蚀、晶间腐蚀等实验和XRD、SEM、TEM等方法,研究了单级时效和形变热处理对一种Al-Mg-Si合金(Mg/Si=1.15)的力学性能和耐蚀性能的影响。结果表明:经过形变热处理Al-Mg-Si合金(Mg/Si=1.15)抗拉强度和屈服强度分别为395 MPa和365 MPa,比经过单级时效处理(抗拉强度为339 MPa,屈服强度为280 MPa)分别高了17%和30%;经过形变热处理Al-Mg-Si合金(Mg/Si=1.15)晶间腐蚀敏感性低于单级时效处理的,但其综合性能比经过单级时效处理的性能好。
The mechanical properties and resistance of a Al-Mg-Si alloy (Mg / Si = 1.15) by single-stage aging and heat treatment were studied by experiments such as stretching, exfoliation corrosion, intergranular corrosion and XRD, SEM and TEM. Effect of erosion performance. The results show that the tensile strength and yield strength of the Al-Mg-Si alloy (Mg / Si = 1.15) after heat treatment are 395 MPa and 365 MPa, respectively. The tensile strength and yield strength of the Al-Mg- 280 MPa) were 17% and 30% higher respectively. The intergranular corrosion susceptibility of the Al-Mg-Si alloy (Mg / Si = 1.15) after deformation treatment was lower than that of the single-stage aging treatment. Good processing performance.