At lower temperature, the strength, hardness, plasticity and ductility of the alloy at the second ageing peak are higher than those at the first one.
两个时效峰的硬度和强度相差很小，在较低温度下时效第二峰的强度、硬度、塑性、韧性较高。
The results show that as the normalized temperature is increased, the volume fraction of ferrite decreases, hardness and strength increases, plasticity and ductility decreases.
结果表明，随正火温度的提高，铁素体数量减少，硬度与强度提高，塑性与韧性降低。
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