1CSIR-National Metallurgical Laboratory, Jamshedpur-831007
R.V.S. College of Engineering and Technology, Jamshedpur, India
*Corresponding Author Email: goswami.b8757@gmail.com
Online published on 2 November, 2018.
Preventive maintenance of mine machineries requires hardfacing to increase and utilize remaining life. Abrasion resistance is key property in mines to handle minerals. Wear and abrasion in surfaced state is decisive on base metal, filler metal, composite constituents and technique of deposition. Difference in microstructure is more important to wear than hardness. Process parameters in welding technique are more important to hardness. Wear resistance of hardface depends on composite particulate size, shape, distribution and grain sizes ofmatrix, e.g.dendritic weld structureconsistingausteniteandeutectic carbides.
TiN coated by chemical vapor deposition (CVD) on alumina (Al2 O3), zirconia (ZrO2) and silicon carbide (SiC) are substitute of fused tungsten carbide (FTC) in metal matrix composites (MMC) applicable for hardfacing technology.
Hardfacing, surface engineering, selection of electrodes, deposition, wear resistance, welding parameters, abrasion, microstructure, non-ferrous hardfacing wires, wettability, molten metal composites, earth mining machineries
