Study on the tribological and wear behavior of FeNi alloy treated by laser shock processing

The Fe40NiCrSiAl alloy in different treatments is strengthened by laser shock processing, and the hardness, elastic modulus, friction of coefficient and wear behavior are tested and analyzed. The results indicate that, Fe40NiCrSiAl alloy is in rolling, which has been treated by laser shock processing, the hardness of the strengthened zone increases by 25.22%, the elastic modulus enhances by 7.17%, friction of coefficient reduces by 13%, and the wear behavior is mainly delamination wear. Fe40NiCrSiAl alloy is in rolling, which has been treated by laser shock processing plus annealing, the hardness of the strengthened zone reduces by 7.59%, the elastic modulus reduces by 6.25%, the friction of coefficient reduces by 13% too, and the wear behavior is mainly abrasive wear. Fe40NiCrSiAl alloy is rolling, which has been treated by annealed, the hardness reduces by 21.65%, the elastic modulus reduces by 28.58%, the friction of coefficient is almost unchanged, and the wear behavior is mainly abrasive wear.