It is found that flow stress is dependent on deformation temperature and strain rates.
结果表明，流变应力取决于变形温度和变形速率。
When deformation temperature is constant, flow stress increases with the increase of strain rate.
当温度一定时，流变应力随着应变速率的升高而增大。
The features of the strain image pattern will change during deformation.
其形态特征在失稳过程中会发生变化。
The features of the strain image pattern will change during deformation.
其形态特征在失稳过程中会发生变化。
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