结果表明 ，晶粒尺寸对应变硬化率及断裂行为有显著的影响 ；
The results show that the grain size have a obvious influence on strain-hardening rate and fracture behavior.
接枝率高的PP，可提高PP体系的熔体强度和拉伸黏度及其应变硬化。
The PP with high grafting rate can improve the melt strength and the extensional viscosity of a PP system and the strain hardening.
相对于常规奥氏体轧制，铁素体轧制薄板的屈服强度下降了20%左右，伸长率及应变硬化指数与之相当。
Compared with the strip produced by conventional austenite rolling, the yield strength of the ferrite rolled strip was lower by about 20%, with same elongation and strain hardening exponent.
相对于常规奥氏体轧制，铁素体轧制薄板的屈服强度下降了20%左右，伸长率及应变硬化指数与之相当。
Compared with the strip produced by conventional austenite rolling, the yield strength of the ferrite rolled strip was lower by about 20%, with same elongation and strain hardening exponent.
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