【摘要】 综述了非金属夹杂物对粉末冶金镍基高温合金力学性能影响的研究现状 ,特别着重夹杂物尺寸、位置、形态、数量等对粉末冶金镍基高温合金低周疲劳寿命 (LCF)的影响。文中提出粉末冶金高温合金存在的问题及今后的研究方向。更多还原

【Abstract】 The present research status of the effect of non metal inclusion on powder metallurgical nickel base superalloy has been reviewed comprehensively, emphasis on the influence of inclusion size, location, morphology and quality on low\|cycle fatigue (LCF) life of the superalloy. The existing points and the research direction in future for powder metallurgical superalloy are presented in this paper.更多还原