Abstract：An auto-reconditioner package for in situ reconditioning of worn surfaces of machinery parts under normal running was applied to diesel engines of DF locomotives. A reconditioning layer was generated on the cylinder bore after running a mileage of 300 000 km, and no wear was measured for the piston rings and cylinder bores. Evaluations with SEM, nanohardness tester and XPS indicated that the protective layer assumed a thickness of 8-10 μm, a nano-hardness twice as high as that of the cast iron substrate, and a main elemental composition of Fe, O and C corresponding to the existence of Fe3O4 and Fe3C. A possible formation mechanism of the protective layer was suggested based on the mechanochemical activation of metal surfaces and the catalytic activation of the auto-reconditioner molecules.
Key words：In situ auto-reconditioning;Mechanochemistry;Protective layer;XPS;Worn metal surface
杨 鹤，张正业，李生华，金元生. 金属磨损自修复层的X光电子能谱研究[J]. 光谱学与光谱分析, 2005, 25(06): 945-948.
YANG He, ZHANG Zheng-ye, LI Sheng-hua, JIN Yuan-sheng. XPS Characterization of Auto-Reconditioning Layer on Worn Metal Surfaces. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 945-948.
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