Thirdly, plastic strain ratio and strain hardening index are the two key parameters of material's formability.
塑性应变比与应变硬化指数是评价板料成形性能的两个重要参数。
Raising the testing strain rate, the strength and yield ratio increased the plasticity slightly decreased, but the strain rate hardening index kept constant.
应变率增加，材料强度提高，屈强比增大，塑性略有降低，但流变阶段应变率强化系数基本不变。
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 increased angularity index of the manufactured sand, the fluidity of the new mortar is becoming bad but the intensity and contractibility is improving after the hardening process.
随着机制砂棱角性指数的增大，新拌砂浆的流动性变差，但硬化后砂浆的强度和收缩性能得到适当的改善。
With the increased angularity index of the manufactured sand, the fluidity of the new mortar is becoming bad but the intensity and contractibility is improving after the hardening process.
随着机制砂棱角性指数的增大，新拌砂浆的流动性变差，但硬化后砂浆的强度和收缩性能得到适当的改善。
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