Mechanism of Improving Mechanical and Electrical Properties of Fe40NiCrSiAI Alloy Induced by Laser Shock Wave

摘要

This paper explores the properties of Fe40NiCrSiAl alloy treated by different methods. The hardness, elastic modulus and resistivity are tested. The results indicate that; after LSP to rolled Fe4GMCrSiAl alloy, the hardness increased 2522%, the elastic modulus increased 7.17% and the resistivity decreased 39%. TEM photographs demonstrated that there appeared dislocations, martensite transformation and twin crystals inside the material after being treated by LSP. Twin crystals are the main reason attributing to the improvement of material electrical properties.