Susceptibility to hydrogen-induced cracking in H2S corrosion environment of API 5L-X80 weld metal
DOI:
https://doi.org/10.3989/revmetalm.0818Keywords:
Welding, Hydrogen induced cracking, H<sub>2</sub>S, Cored wire, G-BOP testAbstract
The susceptibility to hydrogen-induced cracking in H2S environment of welded API X80 steel was studied. The flux cored arc welding (FCAW) process was employed with E71-T1 and E71-T8K6 wires. The welding parameters were kept constant, but the samples were welded using different preheat temperatures (room temperature and 100ºC). The gapped bead-on-plate (G-BOP) test was used. The specimens of modified G-BOP tests were exposed to an environment saturated in H2S, as recommended by the NACE TM0284 standard. The weld beads were characterized by optical microscopy and the level of residual hydrogen in the samples was measured. The fracture surface areas of hydrogen-induced cracking were calculated and the fracture mode was discussed. It was found that the preheating temperature of 100ºC was enough to avoid cracking, even in the presence of H2S. It was also found that the E71- T8K6 wire was more susceptible to cracking, and the typical mixed-mode fracture was predominant in all samples.
Downloads
References
[1] C. Natividad, M. Salazar, A. Contreras, A. Albiter, R. Pérez, y J.G. Gonzalez-Rodriguez., Corrosion 92 (2006) 375-382.
[2] R. Cooper, J.H.F. Silva, y R.E.Trevisan, Rev. Metal. Madrid 40 (2004) 280-287.
[3] S. Liu y A.Q. Bracarense, Soldagem e Materiais 2 (1994) 18-32.
[4] J.L. Davidson, Materials Forum 19 (1995) 35-51.
[5] H.C. Fals y R.E. Trevisan, Rev. Metal. Madrid35 (1999) 233-241.
[6] I. Chattoraj, S. B. Tiwari, A. K. Ray, A. Mitraj y S. K. Das, Corros. Sci. 37 (1995) 885-896. doi:10.1016/0010-938X(95)00001-Z
[7] G. Atkins, D. Thiessen, N. Nissley y Y. Adonyi., Weld. J. 81 (2002) 61-s– 68-s.
[8] J.H.F.Silva, Teses de Doutorado; Faculdade de Engenharia Mecânica, Universidade Estadual de Campinas, São Paulo, Brasil, 2005.
[9] Y. Ito, y K. Bessyo, IIW DOC IX-576-68, 1968.
[10] D.K. Miller, J. Hietpas y R. Depue, Weld. J. 81 (2002) 40-45.
[11] National Association Corrosion Engineers, Houston, USA. NACE TM 0284, NACE International, 1996, 12p.
[12] H.C. Fals y R.E. Trevisan, J. Braz. Soc. Mech. Sci. 21 (1999) 675-682.
[13] A.P. Chakravarti y S.R. Bala, Weld. J. 68 (1989) 1s-8s.
[14] S.P. Oliveira, y P.E.V. Miranda, Revista Matéria 5 (2001) 1-14.
[15] N. Yurioka, y H. Suzuki. Int. Mater. Rev. 35 (1990) 217-252.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2009 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.
