Raising the Wear Resistance of Chromium-Nickel Steel Surface-Hardened with Titanium Carbide Particles
摘要
Electron microscopy and x-ray diffraction analysis are used to study the structure of coatings deposited on steel 12Kh18N9T by non-vacuum electron beam cladding of TiC and Ti + C particles. Wear tests of the coated samples are performed under the conditions of friction against fixed abrasive particles and hydroabrasive impact. It is shown that cladding of the Ti + C powder mixture produces composite titanium carbides with dominantly dendritic structure. The reinforcement of the surface layers of steel 12Kh18N9T (AISI 321) with TiC particles doubles its wear resistance.