Effect of Laser Power on Wear and Corrosion Resistance of High-Speed Cladding 431 Coating
In this paper,the microstructure and wear resistance of 431 stainless steel coating on the surface of 45# Steel sub-strate by high-speed laser cladding were studied,aiming to explore the influence rule under different laser power,and provide theo-retical support for optimizing the coating preparation process.Six kinds of samples with power of 6000W,5500W,5000W,4500W,4000W and 3500W were prepared respectively.At the power of 3500W,the coating powder did not melt.The microstructure,cor-rosion resistance and mechanical properties of the sample coating were analyzed.The results showed that the corrosion resistance was the best when the power was 4000W(RP value was 964848 Ω,Icorr value was 0.132 μA·cm-2).The wear resistance is best in the power range of 5500W,5000W,4500W,4000W(the average friction coefficient is about 0.6,the average wear amount is a-bout 1.6mg).
万方数据
维普
