Study on Abrasive Wear Characteristics of Fe-Cr-C Hardfacing Alloy and Effect of Welding Parameters
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 5
Abstract
Wear is a property of material to resist the component and replace for the functional usage. There are methods to prevent the wear by surface coating that is one, by heat treatment and another by hardfacing by welding. In heat treatment it is not possible to deposit the coatings on the base metal to maximum thickness. This is possible by hardfacing using welding process. The abrasive wear characteristics of different hardfacing electrodes deposited on Mild steel (M.S) plate was studied using the dry sand rubber wheel abrasion tester. The results illustrates that different hardfacing electrodes as well as the weld procedures variation using the variation of chromium, silicon, and carbon have large effects on the abrasion resistance are mainly attributed to the variation in deposit chemistry and microstructures. Carbon and chromium content is an important factor in determining microstructure of such hardfacing electrodes and therefore abrasive wear resistance. Hardfacing materials tend to be suited to specifications of wear. Further more the prime requirements of a metal part is that it has exceptionally good resistance to wear, corrosion or high temperatures. Rather than make the entire part from expensive wear resistance alloy, it is more economical to make it from ordinary steel and then cover the critical surfaces with a layer of weld metal capable of withstanding the service conditions. The application of a durable surface layer to a metal is called hardfacing and a simple way to apply hard surfacing materials is by arc welding. The present work was carried out to study the influence of variables such as current, travel speed, metallurgical variables such as deposit chemistry and subsequently on the abrasive behavior of chromium and carbon hardfacing deposites in statically designed experiments
Authors and Affiliations
K. M. Kenchireddy*
Keywords
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