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采用含０．４４％ Ｃ 的车轴钢，按实物车轴与试样尺寸４∶１ 制成模拟试验轴，将 Ｆｅ、 Ｎｉ、 Ｃｒ及 Ａｌ合金粉末喷涂于试验轴表面，采用模拟轮对试验轴进行模拟车轴工况的微动损伤试验．采用扫描电镜和 Ｘ 射线光电子能谱仪分析涂层磨损表面的氧化物和磨屑表面形貌， Ｘ 射线衍射仪分析磨屑的组织结构．结果表明：涂层磨损表面平滑致密的氧化层中发生龟裂，磨损较为严重；涂层磨损以氧化和表面剥离为主，轴表面无裂纹．其原因在于涂层的层状结构有利于阻止微动作用下表面裂纹向纵深扩展形成疲劳裂纹，提高了车轴的抗微动疲劳能力和使用寿命．
Using 0.44% C axle steel, according to the physical axle and sample size 4: 1 simulation test shaft, the Fe, Ni, Cr and Al alloy powder sprayed on the test shaft surface, the use of simulated wheels on the test shaft Fretting Damage Test Simulating Axle Condition. The surface morphology of oxide and wear debris on the worn surface of the coating was analyzed by scanning electron microscopy and X-ray photoelectron spectroscopy. The microstructure of wear debris was analyzed by X-ray diffraction. The results show that cracks and wear occur in the oxide layer with smooth and dense coating wear surface. The wear of the coating layer is dominated by oxidation and surface delamination with no cracks on the shaft surface. The reason is that the lamellar structure of the coating is conducive to preventing the crack growth to form a fatigue crack at the surface under the action of micro-action, and improves the fretting fatigue resistance and the service life of the axle.