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本试验资料讨论杜拉铝在介稳定状态下变形速度和程度对自然时效和人工时效后机械性能影响的某些特性,且提出了解释所观察到的规律性之见解。 大家知道,随着变形速度的降低,金属和合金的变形阻力会减小,这是由于提高了软化(恢复)的作用而降低了冷作硬化的效应[1-3]。合金在介稳定状态(例如过饱和固溶体状态)变形时,由于时效的结果能够引起速度对变形阻力的相反影响,而时效过程决定于本身变形过程的参数。时效能引起机械性能的提高,外应力作用的时间愈长,也就是变形速度愈小,
This experimental data discusses some of the properties of Duralumin ’s effect on the mechanical properties after natural aging and artificial aging at metastable steady state and suggests insights into the observed regularity. As we all know, with the reduction of deformation rate, deformation resistance of metals and alloys will be reduced, which is due to increased softening (recovery) and reduce the role of cold hardening [1-3]. When the alloy is deformed in a metastable state (such as supersaturated solid solution), the effect of aging on the deformation resistance can be caused by the aging effect. The aging process depends on the parameters of the deformation process. Aging can cause mechanical properties improve, the longer the role of external stress, that is, the smaller the deformation speed,