Computational Study of Mechanical Behavior of Ti6al4v-Coated and Aluminium-Coated 316l Stainless Steel Alloy Under Linear and Cyclic Loading

Abstract

This study includes computational analysis of corrosion-resistant 316L Stainless Steel alloy after surface coating under linear and cyclic loading. Ti6Al4V is known for its strength and corrosion resistance whereas Aluminium is known for its lightweight, enhanced surface finish and corrosion resistance. Based on this, two types of surface coatings are analyzed in this research work i.e. Ti6Al4V coating and Aluminium coating. Effect of both the coatings on tensile and fatigue behaviors of coated 316L Steel specimens is explored. The testing specimen was designed in SolidWorks 16.2 and analysis was done on ANSYS Workbench 19.2. A thin layer of coating was made on 316L Stainless Steel using ANSYS Geometry Modeler. The results indicated that Ti6Al4V coating provides superior properties as compared to Aluminium coating. Although Aluminium coating can reduce the cost and weight of the part but Aluminium coated 316L showed a reduced number of cycles while the cyclic load was applied whereas Aluminium coated specimen exhibited more strain as compared to Ti6Al4V coating. Ti6Al4V coating can be a good choice for Stainless Steel materials where certain desirable characteristics like corrosion resistance, strength, tensile strength, and low-crack initiation and propagation are required.