Experimental Study on Wear Resistance of AISI 347 Treated With Salt Bath Nitriding and Gas Nitriding Processes-A Review

Abstract

The surface treatments are very much essential for improvement in terms of wear resistance and increase in the service lifetime of stainless steels as they have poor wear resistance and easily corroded to the oxidation.This paper reviews the two thermo chemical surface treatments (salt bath nitriding and gas nitriding followed by the post oxidation) applied to AISI 347material.Morphological characterizations were carried out with the help of scanning electron microscope, X-Ray Diffractometer and Pin-on-disc wear testing machine. The results of the both the processes were compared and discussed. From the detailed study made by authors the results shown that with gas nitriding the wear resistance of the material is improved more compared with the salt bath nitriding.