2O3氧化層的形成，抑制Ni和Ti原子的外擴(kuò)散，進(jìn)而優(yōu)化復(fù)合材料的抗氧化性能。氧化膜中Ti和Ni的氧化物含量降低，復(fù)合材料的氧化增重由2.03 mg·cm-2降低到0.55 mg·cm-2。同時(shí)，為了抑制Cr揮發(fā)，在含有58vol%金屬基體的TiC/Hastelloy復(fù)合材料中引入Co。在氧化過(guò)程中，Co和金屬基體中的Fe在Cr2O3氧化層中具有較快的擴(kuò)散速率，可以在Cr2O3氧化層外側(cè)原位形成CoFe2O4層。;TiC/Hastelloy composite has been proposed as one of promising intermediate temperature solid oxide fuel cell interconnects, and the oxidation resistance is one key property for its application. TiC/Hastelloy composites with 50vol% and 58vol% metal matrix were prepared by reactive infiltration method. Results show that high metal content results in the increase in Cr content, which optimizes the oxidation resistance of TiC/Hastelloy composites by promoting formation of continuous Cr2O3 layer to inhibit external diffusion of Ni and Ti. The content of Ti and Ni oxides in oxide scale obviously decreases. The mass gain reduces from 2.03 to 0.55 mg·cm-2. Meanwhile, in order to inhibit the migration of Cr, Co is extra introduced into the composites with 58vol% metal. During the oxidation process, Co and Fe (in metal matrix) show high external diffusion rate through Cr2O3, and generate in-situ CoFe2O4 layer outmost the oxide scale."/>