Abstract
Sand-wear resistance of nano scale alumina particle reinforced nickel matrix composite coating (n-Al2O3/Ni) prepared by brush electroplating technique was investigated via wear tests in sand-contaminated oil lubricant, comparing with that of AISI1045 steel and brush electroplated Ni coating. Effects of testing load, sand content and sand size on worn volume of the three materials, and also coating surface roughness on worn volume of the brush electroplated coatings were accessed. Results show that the worn volume of all the three materials increases with increasing of testing load, sand content and sand size. In the same conditions, n-Al2O3/Ni composite coating has the smallest worn volume while AISI1045 steel has the largest because of the n-Al2O3 particle effects. As to n-Al2O3/Ni and Ni coatings, the surface-polished coatings have obviously lower worn volume than the as-plated coatings. The brush electroplated n-Al2O3/Ni composite coating was employed to remanufacture the sand-worn bearing seats of a heavy vehicle and good results were gained.
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Foundation item: Project (50235030) supported by the National Natural Science Foundation of China; Project (51489020104ZD0401) supported by the National Key Laboratory for Remanufacturing; Project(51418060105JB3058) supported by National Defence Foundation
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Dong, Sy., Xu, Bs., Du, Lz. et al. Sand-wear resistance of brush electroplated nanocomposite coating in oil and its application to remanufacturing. J Cent. South Univ. Technol. 12, 176–180 (2005). https://doi.org/10.1007/s11771-005-0035-8
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DOI: https://doi.org/10.1007/s11771-005-0035-8