Abstract
The fatigue behaviors of 48MnV steel, both uncoated and coated with different thicknesses of 3Cr13 deposits using twin arc spraying, were investigated. The fatigue properties of the 48MnV steel, determined under axial loading conditions, can be substantially decreased by coating 3Cr13 films, deposited by twin arc spraying. And the fatigue behavior of the thinner coatings is better than that of the thicker ones, of which the fatigue limits decrease by 9%–14%. The decrease in fatigue life attributes to the less mechanical properties of the coatings in comparison with those of the substrate, their relative bad bonding strength and trapped oxide or Al2O3 particles retain in the matrix after blasting responsible for the initiation of fatigue cracks.
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Foundation item: Project (50235030) supported by the National Natural Science Foundation of China
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Zhang, Gq., Su, B., Pu, Gq. et al. Fatigue properties of 48MnV steel with twin arc spraying 3Cr13 coatings. J Cent. South Univ. Technol. 12, 112–118 (2005). https://doi.org/10.1007/s11771-005-0021-1
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DOI: https://doi.org/10.1007/s11771-005-0021-1