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从位错运动的应力功和应变能关系导出了附着在基体上并有钝化层薄膜的屈服强度公式 .该式表明多晶薄膜的屈服强度由两个影响因子 (晶粒取向和位错类型 )和三个强化因子 (钝化层强化 ,基体强化和晶粒强化 )确定 .和已报道的实验结果基本一致表明了该模型的合理性
Based on the relationship between stress function and strain energy of dislocation movement, the yield strength formula of the film attached to the substrate with the passivation layer is derived. The formula shows that the yield strength of the polycrystalline film is determined by two influence factors (grain orientation and dislocation type ) And three strengthening factors (passivation layer strengthening, matrix strengthening and grain strengthening) were determined.According to the reported experimental results, the rationality of the model