WC-FeNiCr super-hard nonmagnetic coating composite material and process for preparing same

Disclosed are a WC-FeNiCr super-hard nonmagnetic coating composite material and a process for preparing the same, The WC-FeNiCr super-hard nonmagnetic coating composite material and the process for preparing the same belong to the technical field of surface coatings. The chemical compositions of the WC-FeNiCr super-hard nonmagnetic coating composite material include 20 to 60 wt % of tungsten carbide, 20 to 55wt % of Fe, 13 to 17wt % of Ni, 5 to 13wt% of Cr; the structure of the WC-FeNiCr super-hard nonmagnetic coating composite material is mainly formed by nonmagnetic phases such as WC, W2C, gamma-Fe, FeCr and the like; the WC-FeNiCr super-hard nonmagnetic coating composite material has comparatively high content (20 % to 60%) of tungsten carbide, thereby greatly improving anti-abrasion property of the material. The process for preparing the material mainly comprises steps of selecting materials, preparing alloy powders, performing ball-milling, choosing carriers for mechanical parts and preparing coatings on surfaces of the mechanical parts by means of laser cladding. The material and the process can be used to prepare nonmagnetic anti-abrasion coatings on surfaces of accessory parts and parts for metal mechanical movement, and realizes strengthening and restoring surfaces of the parts. Besides, mechanical part carriers can be selected from parts made of nonmagnetic materialssuch as austenitic stainless steels, nonmagnetic steels, aluminum alloys, titanium alloys, copper alloys and the like.