Influence of Surface Remelting Process on Corrosion Resistance of Welding Joints for SUS304 Stainless Steel by Electrode Arc Welding

Abstract:

The electrochemical corrosion tests of SUS304 stainless steel joint which was welded by electrode arc welding show that. The welding energy has obviously effect upon corrosion resistance of welding joints. The welding current directly influences the corrosion resistance of heat affected zone (HAZ) of welding joint. The Surface of joints was remelted by the micro-plasma arc and argon arc process. It is suggested that corrosion resistance of welding joint was improved obviously after remelting. The main reasons for improving the corrosion resistance of welding joint may be that grain refined, chromium oxidation film formed and elements diffusion inhibited by arc-remelting process.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 1983-1986
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.1983
• Online since: November 2012
• Authors: Hui Luo, Feng Qi Yang, Peng Liu, Yu Shuang Huo
• Keywords: Austenitic Stainless Steel, Corrosion Resistance, Micro-Plasma Arc, Surface Remelting

References

[1] Metals Handbook, 10th ed, ASM , Metals Park, OH, 1994, vol. 5.

[2] M. Yan: Surf. Coat. Tech. Vol 99 (1998), p.132.

[3] Z. Q. Cui, W. X. Wang, J. Liang and Q. Li: Trans. Mater. Heat Treat. Vol 28 (2007), p.124.

[4] D. R. Baer, M. D. Merz: Metall. Trans. A Vol 11 (1980), p.1973.

[5] L. M. Hu, B. Hu, Y. G. Zhang and Y. S. Wang: Trans. China Weld. Institution Vol 27(2006), p.34.