Influence of oxygen content in the protective gas on pitting corrosion resistance of a 316l stainless steel weld joint

Maroufkhani, Mohammad, Hakimian, Soorosh, Khodabandeh, Alireza, Radu, Iulian, Hof, Lucas A. et Jahazi, Mohammad. 2023. « Influence of oxygen content in the protective gas on pitting corrosion resistance of a 316l stainless steel weld joint ». Materials, vol. 16, nº 17.
Compte des citations dans Scopus : 1.

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Résumé

Gas tungsten arc welding (GTAW) is commonly used for joining pipelines; however, it often leads to discoloration in the heat-affected zone (HAZ). In this study, 316L pipes were welded with different concentrations of oxygen present in the argon purge gas during welding. The objective of this study was to investigate the effect of oxygen concentration in the protective gas on the pitting corrosion resistance of welded pipes. The experimental results showed that the thickness of the oxide layer formed in the HAZ depends on the concentration of oxygen in the protective gas. Increasing the oxygen concentration in the protective gas resulted in an increase in pitting corrosion resistance until a critical value, beyond which the resistance decreased. The results showed that the thickness of the oxide layer formed in the HAZ depends on the concentration of oxygen in the protective gas. Increasing the oxygen concentration in the protective gas increased the pitting corrosion resistance until a critical value, beyond which the resistance decreased due to the formation of iron oxide. This study provides valuable insights for improving the corrosion resistance of welded pipes in the oil and gas industry.

Type de document:	Article publié dans une revue, révisé par les pairs
Professeur:	Professeur Hof, Lucas Jahazi, Mohammad
Affiliation:	Génie mécanique, Génie mécanique
Date de dépôt:	26 sept. 2023 20:01
Dernière modification:	17 oct. 2023 18:34
URI:	https://espace2.etsmtl.ca/id/eprint/27857

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