【摘要】 采用Gleeble-3500热模拟试验机对8014铝合金进行了不同变形条件下的热变形试验，得到了8014合金的真应力-真应变曲线，分析了不同变形条件下合金的微观组织，构建了8014合金基于应力的本构方程及不同应变条件下的热加工图。结果表明，在应变为0.3条件下，8014合金的软化机制以动态回复为主。8014合金的最佳加工区域为340～400℃、0.1～10 s^-1。更多还原

【Abstract】 A thermal compression experiment for 8014 aluminum alloy under different deformation conditions was carried out by the Gleeble-3500 thermal simulation test machine, and the true stress-strain curves of 8014 alloy were obtained. The microstructure of alloy under different deformation conditions was analyzed, and the stress-based constitutive equation and thermal processing diagram of 8014 alloy under different strains were established. The results indicate that the softening mechanism of 8014 alloy is dominated by dynamic recovery under the strain of 0.3, and the optimum processing zone is 340～400 ℃ and 0.1～10 s^-1.更多还原