Abstract
The features of the synthesis of a composite coating based on η-carbide (Fe,W)6C and tungsten applied to an iron substrate have been studied. Coatings are produced by high-speed selective laser sintering of WFe powders mechanically alloyed in a liquid hydrocarbon. The phase composition of the coating starts its formation from the nucleation and growth of (Fe,W)6C carbide inclusions of up to 400 nm in size. The applied coating has a hardness of 16 GPa, high wear resistance, and friction coefficient of 0.22 to 0.28 measured in dry fretting wear test with steel and WC–Co balls under a load of 10 to 100 N.
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Schedule a callMore From: International Journal of Refractory Metals and Hard Materials
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