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对QBe1.9铜合金进行双辉等离子Ti+N共渗,在其表面制备富TiN合金层以改善该铜合金的摩擦磨损性能。采用扫描电镜、辉光放电光谱仪和X射线衍射仪等分析了Ti+N共渗合金层的组织、成分及相结构,对该合金层的硬度进行分析,并利用往复球盘摩擦磨损试验机研究了QBe1.9基材及其Ti+N共渗后的摩擦磨损性能。结果表明:经过Ti+N共渗,QBe1.9合金表面形成了厚度约15μm的富TiN合金层。QBe1.9合金经Ti+N共渗后其表面硬度达486HV,与基材相比有明显提高;其摩擦系数和磨损率与未处理基材相比均有明显降低,达到了良好的减摩耐磨效果。表面高硬富TiN合金层的形成是Ti+N共渗处理改善QBe1.9铜合金表面性能的主要原因。
The double-bright plasma Ti + N co-infiltration was carried out on QBe1.9 copper alloy, and the TiN-rich alloy layer was prepared on the surface to improve the friction and wear properties of the copper alloy. The microstructure, composition and phase structure of the Ti + N alloying layer were analyzed by scanning electron microscopy, glow discharge spectrometer and X-ray diffraction. The hardness of the alloy layer was analyzed. The reciprocating disk friction and wear tester The QBe1.9 substrate and its Ti + N after the friction wear properties. The results show that a TiN-rich TiN alloy layer with a thickness of about 15μm is formed on the surface of QBe1.9 alloy after Ti + N co-infiltration. The surface hardness of QBe1.9 alloy after Ti + N permeation is up to 486HV, which is obviously higher than that of the substrate. The friction coefficient and wear rate of QBe1.9 alloy are significantly lower than that of untreated substrate, Wear effect. The formation of TiN alloy layer with high hardness and rich surface is the main reason for improving the surface properties of QBe1.9 copper alloy by Ti + N co-permeation treatment.