结果表明，时效状态、特别是形变时效状态合金具有明显的氢脆敏感性。
Results show that the alloy in aging state, especially in deformation-aging state, is apparently susceptible to hydrogen embrittlement.
本文研究了不同的形变时效处理对LY 12铝合金应力腐蚀开裂性能的影响。
The effect of different deformation-aging treatments on the stress corrosion cracking of LY12 aluminum alloy was studied.
在不同时效状态，合金的拉伸和疲劳断裂方式亦不同，拉伸和疲劳断裂方式受合金形变行为的影响。
The tensile and fatigue fracture mode is also different in different aging conditions, which is affected by the slip behavior of the alloy.
这种敏感性与预浸介质，时效，预形变方式和形变量有关。
This susceptibility is related to pre-immersion medium, aging, pre-deformation mode and deformation degree.
随着应变时效温度升高，强度和硬度增加，塑性和韧性下降，屈强比呈升高的趋势，形变强化指数降低。
With the strain aging temperature increasing, strength and hardness increases, plasticity and toughness decreases, yield ratio has the ascending trend, hardening index decreases.
随着应变时效温度升高，强度和硬度增加，塑性和韧性下降，屈强比呈升高的趋势，形变强化指数降低。
With the strain aging temperature increasing, strength and hardness increases, plasticity and toughness decreases, yield ratio has the ascending trend, hardening index decreases.
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