ZG1Cr11Ni2WMoV属于铸造马氏体型不锈钢,拥有较好的综合力学性能、抗回火稳定性及良好的抗腐蚀能力,常被用于制作航空航天热端部件。根据航空标准HB5430-1989对铸件进行热处理,铸件的性能尤其是冲击韧性不能达到设计要求。本文采用金相观察以及SEM等分析手段,研究了热处理工艺对铸件组织及性能的影响,为铸件制造提供了指导。 ZG1Cr11Ni2WMoV is cast martensitic stainless steel, has good mechanical properties, anti-tempering stability and good corrosion resistance, often used to make aerospace hot-end components. According to the aviation standard HB5430-1989 for heat treatment of castings, the performance of castings, especially the impact toughness, can not meet the design requirements. In this paper, metallographic observation and SEM and other analytical tools to study the heat treatment process on the microstructure and properties of castings, casting provides guidance.