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近来的研究工作对离子镀膜与底材间的过渡界面以及离子镀金膜的摩擦、磨损性能进行了讨论。已运用X-光光电子能谱(XPS),深度分布和显微硬度沿深度的分布来研究该界面。研究了离子镀金膜和气相沉积金膜的摩擦、磨损性能,既在超高真空系统中考察了最大粘着状态,又在油中考察了最小粘着状态。结果表明,金在底材中的溶解性控制着此过渡层的厚度。而且认为,金-镍过渡层的形成也与热扩散及化学扩散机制有关。在铁-金过渡层中,金主要是分散在铁中,因此形成物理结合态交界层。金膜的硬度与测试点的深度有关,而且与金膜和底材间的组成梯度有关。镍-金交界层由于合金硬化效应而显示了最高的硬度。确定了膜厚对粘着和摩擦的影响。在薄膜区测得了最小的摩擦系数。检测表明,在蒸镀膜和底材间无过渡层。
Recent research work has discussed the transitional interface between the ion plating and the substrate and the friction and wear properties of the ion plating gold plating. The interface has been studied using X-ray photoelectron spectroscopy (XPS), depth distribution, and distribution of microhardness along the depth. The friction and wear properties of ion plating gold film and vapor deposition gold film were studied. The maximum adhesion state was investigated in ultrahigh vacuum system and the minimum adhesion state in oil. The results show that the solubility of gold in the substrate controls the thickness of this transition layer. It is also believed that the formation of Au-Ni interlayers is also related to thermal diffusion and chemical diffusion mechanisms. In the iron-gold transition layer, gold is mainly dispersed in the iron, thus forming a physically bound interface layer. The hardness of the gold film is related to the depth of the test point, and is related to the compositional gradient between the gold film and the substrate. The nickel-gold interface layer shows the highest hardness due to the hardening effect of the alloy. The effect of film thickness on adhesion and friction was confirmed. The minimum coefficient of friction was measured in the film area. Test showed that there is no transition layer between the deposited film and the substrate.