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研究单芯Ｎｂ－Ｔｉ／ＴｉＡｌ及Ｎｂ－Ｔｉ／Ｔｉ－４８Ａｌ－２Ｃｒ－２Ｎｂ两种模拟材料试样的界面特性。结果表明，在同一条件下热等静压成型的两种复合模拟试样，其界面均由厚度、显微硬度不同的反应层构成。Ｎｂ－Ｔｉ／Ｔｉ－４８Ａｌ－２Ｃｒ－２Ｎｂ试样的界面结合完整，界面层较厚，界面结合强度为１２３．７ＭＰａ；Ｎｂ－Ｔｉ／ＴｉＡｌ的界面层较薄，近基体侧界面有径向裂纹，界面结合强度为９４．８ＭＰａ，均高于未涂覆Ｔｉ的模拟试样的界面结合强度。压脱试验后，前者仅沿近纤维侧界面开裂，后者的界面层沿纤维和基体均发生开裂，径向微裂纹甚至扩展到基体中。
The interfacial properties of two kinds of simulated material samples of single core Nb-Ti / TiAl and Nb-Ti / Ti-48Al-2Cr-2Nb were studied. The results show that under the same conditions hot isostatic pressing of two kinds of composite simulation sample, the interface is composed of the reaction layer of different hardness and microhardness. The interfaces of Nb-Ti / Ti-48Al-2Cr-2Nb samples are intact, the interfacial layer is thick, the interfacial bonding strength is 123.7MPa, the interfacial layer of Nb-Ti / TiAl thinner and the radial cracks , The bonding strength of the interface is 94.8MPa, which is higher than that of the uncoated Ti. After the compression-off test, the former only cracks along the interface near the fiber side, the interface layer of the latter cracks along the fiber and the matrix, and the radial microcracks even extend into the matrix.