A comprehensive analysis of the microstructure, compression performance and work hardening capacity of an in situ ceramic-reinforced NiAl matrix composite through the integration of combustion synthesis and hot pressing was investigated. The results showed that the grain size of the composite containing 5 vol% TaC ceramic particles was refined by 64%. Meanwhile, there was a small lattice mismatch between NiAl matrix and TaC ceramic particles, which also means that the low-energy interface between the NiAl and TaC contributed to the stability of the interface combination. Furthermore, the yield strength, maximum compression stress and strength-ductility balance of the composite were increased by 31%, 26% and 15%, respectively. This paper focuses on the mechanical properties and mechanism of a NiAl matrix composite with 5 vol% in situ TaC ceramic particles at room temperature.

通过燃烧合成与热压相结合的方法，对原位陶瓷增强NiAl基复合材料的组织，压缩性能和加工硬化能力进行了综合分析。结果表明，含有5vol％TaC陶瓷颗粒的复合材料的晶粒尺寸细化了64％。同时，NiAl基体和TaC陶瓷颗粒之间的晶格失配很小，这也意味着NiAl和TaC之间的低能量界面有助于界面组合的稳定性。此外，复合材料的屈服强度，最大压缩应力和强度-延性平衡分别提高了31％，26％和15％。