论文信息 - Effects of laser treatments on cavitation erosion and corrosion of AISI 440C martensitic stainless steel

Effects of laser treatments on cavitation erosion and corrosion of AISI 440C martensitic stainless steel

Abstract Laser surface treatments with high and low fluence were employed to induce melting and transformation hardening on 440C. While melting could bring about better improvement in corrosion resistance, transformation hardening was more effective in enhancing the cavitation erosion resistance. Compared with conventional heat treatment, laser treatments resulted in higher corrosion resistance with a wide passive range in NaCl solution, and also in higher cavitation erosion resistance in both deionized water and NaCl solution.

[1] J. Ready. LIA handbook of Laser materials processing , 2001 .

[2] Q. Zheng,et al. Laser surface treatment of high‐phosphorus cast iron , 1985 .

[3] W. Tomlinson,et al. Laser surface processing and the cavitation erosion of a 16 wt.% Cr white cast iron , 1990 .

[4] K. Gahr,et al. Microstructure and Wear of Materials , 1987 .

[5] J. Bello,et al. Laser surface treatment and corrosion behaviour of martensitic stainless AISI 420 steel , 1992 .

[6] R. Colaço,et al. Effect of the processing parameters on the proportion of retained austenite in laser surface melted tool steels , 1998 .

[7] S. C. Lee,et al. Fracture Behavior of AISI M-2 High Speed Tool Steel , 1981 .

[8] H. Man,et al. Cavitation erosion and pitting corrosion behaviour of laser surface-melted martensitic stainless steel UNS S42000 , 2000 .

[9] J. Damborenea,et al. Corrosion behaviour of steels after laser surface melting , 2000 .

[10] H. Man,et al. Synergistic effect of cavitation erosion and corrosion of various engineering alloys in 3.5% NaCl solution , 2000 .