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采用蒸发沉积结合Ne+束轰击混合的方法,在GCr15轴承钢底材表面制备了Ni-Mo多层膜,并且利用俄歇电子能谱仪、透射电子显微镜和X射线衍射仪等,对Ni-Mo多层膜的元素组成和分布,以及膜层的显微组织形态、相结构和硬度等进行了系统的观察、分析与测量,同时还就这种多层膜的抗磨特性进行了试验研究.结果表明,Ni-Mo多层膜实际上是由纳米微晶组成的Ni/Mo(C,O)纳米多层膜.这种多层膜的硬度比用同种方法制备的Ni或Mo单层膜的硬度都高,且其抗磨性能优良,这归因于多层界面和纳米晶粒强化效应有效地抑制了裂纹的扩展.
Ni-Mo multilayers were prepared on the substrate surface of GCr15 bearing steel by evaporative deposition combined with Ne + beam bombardment. The Au-Mo multilayer films were prepared by Auger electron spectroscopy, transmission electron microscopy and X-ray diffraction. Elemental composition and distribution of multi-layer films, as well as the microstructure, phase structure and hardness of the films were systematically observed, analyzed and measured. At the same time, the anti-wear properties of the multilayer films were also studied. The results show that Ni-Mo multilayers are actually Ni / Mo (C, O) nano-multilayers composed of nanocrystalline. The hardness of this multi-layer film is higher than that of Ni or Mo single-layer film prepared by the same method, and its anti-wear performance is excellent, which is attributed to the multi-layer interface and nano-grain strengthening effect effectively inhibiting the crack The expansion.