Induction Surface Hardening: a review

Abstract

One of the methods of surface hardening the majority extensively used surface hardening procedure which can be used in many metals in their entirety in today’s applications. Induction coil is concentrated to the localized area where the necessary piece is hardened of the material. A high inductance coil is used to heat the surface of steel into the austenitic region. High heat transformation rates result in instant quenching by oil, resulting in a steep temperature gradient. This method necessitates external quenching because it induces phase conversion from austenite to martensite. This review paper ensures an overview of the principles of induction surface hardening, as well as some of its advantages over traditional hardening techniques. The results of experiments and computational approaches reported by different researchers are discussed.