Research on the Electrochemical Behaviour of H05MnNiMo and H06H1 Submerged Arc Welded Seam in the S^2- Medium

Abstract:

Welding sticks H05MnNiMo and H06H1 are developed to improve the corrosion resisting property of the X80 pipeline in submerged arc welding. Influence of the concentration of sulfur-bearing medium and the temperature on the corrosion of welding seam from X80 pipeline steel was investigated with the Electrochemical Polarization Method and Weight loss Method. And the characteristic and mechanical of the welding seam was discussed. The results show that the welding seam prepared in H05MnNiMo is of high corrosion potential, both of the welding seams have a maximum of corrosion rate 1.0×10^-7 mm/a, in the S^2- bearing solution with a S^2- concentration from 1.0% to 2.5%, at the temperature from 20 OC to 60 OC, thus they can be classified as anti-corrosive material.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 4010-4015
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.4010
• Online since: May 2011
• Authors: Zong Yue Bi, La Jun Feng, A Li Lei
• Keywords: Sulfur-Bearing Medium, Welding Seam, X80 Pipeline Steel

References

[1] Helin Li China Mechanical Engineering Vol. 13(2001), pp.349-352(in Chinese)

[2] Chuanjing Zhuang, Rong Yao, Chunyong Huo Welded Pipe and Tube Vol. 28(2005), pp.10-14(in Chinese)

[3] Rui Zheng Shougang Science and Technology Vol. 3(2003), pp.7-11(in Chinese)

[4] Chengwu Miao Welded Pipe and Tube Vol. 23(2000), pp.26-31(in Chinese)

[5] Jiahua Pan Welded Pipe and Tube Vol. 25(2002), pp.1-2(in Chinese)

[6] Huilin Gao: Pipeline steel-microstructure , property and welding behavior (Shaanxi Technological Press, xi'an 1995)

[7] Quanmin Bu, Li Wen Corrosion Science and Technology Protection Vol. 14(2002), pp.362-364

[8] Huazhen Cao, Zhangjiu Yuan Corrosion &Proection Vol. 10(2002), pp.427-429

[9] Chengzhong Zhang: Corrosion and protection of mental (Metallurgical Industry Press, Beijng 1985)