冷加工与退火工艺对5052铝合金组织及力学性能的影响

Effect of cold working and annealing on microstructure and mechanical properties of 5052 aluminum alloy

研究了冷加工与退火工艺对5052铝合金组织及力学性能的影响。研究表明,5052铝合金板材具有良好的塑性,达到60%的冷变形时也只有轻微的裂边。随着冷加工率的增加,合金的屈服强度、抗拉强度随之提高,延伸率逐渐降低。冷加工率70%的合金板材,开始再结晶温度为260℃。在≥260℃时退火,合金大部分为再结晶组织,合金90°折弯无裂纹,折弯成型性能良好。

The effect of cold working and annealing on microstructure and mechanical properties of 5052 aluminum alloy was studied.The research shows that 5052 aluminum alloy sheet has good plasticity,and the cold deformation of 60%has only slight crack edge.The yield strength and tensile strength of the alloy increase with the increase of the cold working rate,while the elongation decreases gradually.The temperature of recrystallization of alloy plate with cold working rate of 70%is 260℃.The alloy annealed when 260℃,most alloy is recrystallization structure,the alloy 90 fold without crack,the alloy bending molding performance is good.