摘要：在對位錯塞積進行修正連續介質分析的基礎上,考慮了位錯塞積造成的應力集中,詳細討論了空洞系統Gibbs自由能的變化,得出了高溫合金蠕變空洞新臨界形核半徑.結果表明:它比Raj模型應用范圍更廣.%Based on the modified continuum analysis of dislocations pileup, has been the change of the Gibbs free energy consider particularly in the system taking into account the stress concentration. Then we derive the new critical radius for cavity nucleation during elevated temperature creep deformation of alloys, which has a wider application than the one proposed by Raj et al. before.
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