Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

In this study, the tribological properties of three AISI 1045 steel samples were investigated. Two treated with ultrasonic shot peening (USP) and strengthening grinding process (USGP), respectively, while other one was only a polishing process. Sample properties, such as surface morphology, roughness, microhardness, elastic modulus, frictional coefficient, phase structures analyzed. Results show that sample USGP had best properties. It realized highest modulus. Compared polished sample, roughness increased by 157%, microhardness modulus improved 32.8% 21.3%, respectively. Additionally, provided an average coefficient 0.4, decreasing approximately 45% compared to polishing. The possible mechanisms texturing discussed. findings denote could be efficient approach improve fatigue life some mechanical components.