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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。
The current research status of nonmetallic inclusions on the mechanical properties of powder metallurgy nickel base superalloys is reviewed. The effects of inclusions size, position, morphology and quantity on the low cycle fatigue life (LCF) of powder metallurgy Ni - based superalloy are emphasized. The paper presents the existing problems of powder metallurgy superalloys and future research directions.