Investigation on plasma transferred Arc hardfacing of structural steel With titanium carbide

Abstract

Hardfacing sometimes called hardsurfacing is a surface protection newlinemethod made up of buildup deposits of specialization alloys using welding newlinetechnology to resist severe wear in form of abrasion correction high service newlinetemperatures or impact The points of deposits of such alloys may be the surfaces newlineedges or even the contact part of the component under the influence of wear 1 newlineWith the applications of the welding deposits components could resume its newlinefunctionality thereby extending their service lives 2 Among the several welding newlineprocessesPlasma Transferred Arc PTA hardfacing process has been widely newlineemployed due to its several advantages such as higher volume of metal deposition newlinerates and achieving very low dilution level Heat input which influences dilution newlinecan be controlled by the proper selection of PTA process parameters newlinePTA hardfacing is performed to improve the surface properties of metallic newlinemachine parts locally Hardfacing material with the desired properties is fused newlineonto a substrate by means of plasma ionization newline newline