Enhancing mechanical and corrosion qualities using metal inert gas weld hardfacing: A brief review

Abstract

Due to its better mechanical qualities and corrosion resistance, metal inert gas weld hardfacing is popular in both the manufacturing and research sectors and also contributes to longer machine element service lives. It is defined as a method of achieving desired surface attributes by employing welding procedures on structural materials with relatively low qualities and low cost, known as substrate materials. The weld hardfacing helps with two important aspects of improving material qualities: first, it improves characteristics of the material that depend on the surface (such as corrosion and wear resistance), and second, characteristics that rely on the mass, such as hardness, and durability. This article reviews several studies that have been done so far on various substrates in the area of metal inert gas weld hardfacing to improve microstructure, corrosion, and mechanical characteristics. According to past researchers, various MIG welding parameters play a crucial role and can be optimised to get desirable output such as enhanced tribological, mechanical, and corrosion properties. The writers have made an effort to address the recommendations for future work in this field. Present and future researchers on hardfacing using welding would benefit from the outcome of this paper, which is also useful to many industries.