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为了研究IC10合金的动态再结晶特性,利用MTS809材料测试系统对其在900°C、不同应变率(10-4～10-2s-1)下进行了拉伸试验。试验结果表明:(1)不同应变率下的应力-应变曲线具有类似的特征,并且IC10合金的流变应力对应变率敏感;(2)流变应力、临界应力和临界应变随着应变率的增加而增大。基于TEM和SEM试验IC10合金的力学特性机理。为了描述IC10合金的动态再结晶行为,本文提出了一个新的宏观唯象本构模型。该模型的预测与试验结果比较验证了其有效性。
In order to study the dynamic recrystallization properties of IC10 alloy, the tensile test was carried out at 900 ° C and different strain rates (10-4 ~ 10-2s-1) using the MTS809 material testing system. The results show that: (1) The stress-strain curves at different strain rates have similar characteristics, and the flow stress of IC10 alloy is sensitive to the strain rate; (2) The flow stress, critical stress and critical strain change with the strain rate Increase and increase. MECHANICAL CHARACTERISTICS OF IC10 ALLOY BASED ON TEM AND SEM. In order to describe the dynamic recrystallization behavior of IC10 alloy, a new macroscopic phenomenological constitutive model is proposed in this paper. The model’s prediction and test results verify its effectiveness.