On the corrosion resistance of the submerged arc welded titanium in concentrated hydrochloric acid 8 N - Sorbonne Université
Journal Articles Electrochimica Acta Year : 1983

On the corrosion resistance of the submerged arc welded titanium in concentrated hydrochloric acid 8 N

Abstract

The corrosion behaviour of the submerged arc welded T-35 in concentrated 8 N HCl has been investigated. The weld metal is characterized by a martensite type structure, a hardness superior by 60 HV and an oxygen content about two and a half times higher than the base metal. In order to underline the part played by oxygen and structural transformations intervening during the welding operation, an analysis of the anodic current-potential curves by a reaction model involving four determining steps has been carried out. It has been shown that the two reaction rates which determine the passivation and the passivity of the metal depend on the oxygen content as well as the metallurgical structure. In the active dissolution range, whereas one of the two determining rates depends on the oxygen content, the other one is controlled by the metallurgical structure of the metal.

Dates and versions

hal-04687239 , version 1 (04-09-2024)

Identifiers

Cite

Adrien Caprani, J.P. Frayret, R. Pointeau, S.K. Marya, F. Le Maitre. On the corrosion resistance of the submerged arc welded titanium in concentrated hydrochloric acid 8 N. Electrochimica Acta, 1983, 28 (2), pp.141-147. ⟨10.1016/0013-4686(83)85100-7⟩. ⟨hal-04687239⟩
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