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Keywords: Back purging gas
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Proceedings Papers
Tatiana C. Almeida, Rogaciano M. Moreira, Merlin C. E. Bandeira, Oscar R. Mattos, Flávia M. F. Guedes, Ilson P. Baptista, Petronio Zumpano, Junior, Ricardo R. Marinho, Aline L.S. Gomes, Marcelo F. Motta, Hélio C. Miranda
... on the resistance to local corrosion Although there is a strict control regarding the contamination of back purging gas with oxygen, sometimes, this control may fail and the oxygen content may exceed this limit. Understanding if the pitting corrosion resistance is affected by a higher oxygen level and how a post...
Proceedings Papers
Tatiana C. Almeida, Rogaciano M. Moreira, Merlin C. E. Bandeira, Susana L. Díaz, Drielly L. Souza, Brenda C. S. Cardozo, Rafaela A. Posse, Oscar R. Mattos, Flávia M. F. Guedes, Ilson P. Baptista, Petronio Zumpano Junior, Ricardo R. Marinho, Aline L.S. Gomes, Marcelo F. Motta, Hélio C. Miranda
...For corrosion tests, weld surfaces were tested in “as-welded” condition, since the oxygen content in back purging gas affects the oxide formation, and after post-weld surface treatment by pickling and passivation. For the last, the coupons were pickled for immersion in a bath containing 3...
