A flow instability criterion developed based on a continuum model was found to be related to the onset of power law breakdown in creep deformation mechanisms. The currently proposed flow instability criterion based on power law breakdown (n > 7, where n is the stress exponent) can be applied to any materials showing power law creep and power law breakdown without any assumptions and limitations. The proposed model also allows for the easy construction of power dissipation map because power dissipation efficiency can be explicitly expressed as a function of n even when n is not constant with strain rate.

中文翻译：

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使用基于幂律分解的流动不稳定性准则轻松构建金属合金的加工图

发现基于连续模型的流动不稳定性判据与蠕变变形机制中幂律分解的开始有关。当前提出的基于幂律分解的流量不稳定性准则（n > 7，其中n是应力指数）可以应用于任何显示幂律蠕变和幂律分解的材料，而无需任何假设和限制。提出的模型还允许轻松构建功耗图，因为即使n在应变率下不是恒定的，功耗效率也可以明确表示为n的函数。