Corrosion resistance improvement of commercial pure titanium via compression deformation induced substructure

The effect of different degrees of deformation on the corrosion behavior of the commercial pure titanium produced by uniaxial compression in sodium chloride solution was studied. Compared with the original sample, the thickness of the passivation film of the samples with 10%, 20% and 30% deformation...

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Bibliographic Details
Published inCorrosion science Vol. 229; p. 111891
Main Authors Jiang, X.J., Meng, Y.G., Ran, Q.X., Yang, J.H., Sun, G.W.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2024
Subjects
Cold deformation
Corrosion resistance
Passivation behavior
Titanium
Corrosion resistance
Titanium
Passivation behavior
Cold deformation
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Summary:The effect of different degrees of deformation on the corrosion behavior of the commercial pure titanium produced by uniaxial compression in sodium chloride solution was studied. Compared with the original sample, the thickness of the passivation film of the samples with 10%, 20% and 30% deformation reduction increased by 1.21, 1.42 and 2.15 times, respectively. The high content of TiO2 in the surface layer and Ti(OH)x in the sub-oxide layer improves the stability of the film. The increase of (0002) texture coefficient and dislocation density are the reason for the improvement of corrosion resistance of pure titanium after deformation. •Deformation significantly affects the corrosion resistance of commercial pure Ti.•Corrosion resistance of deformed commercial pure Ti is improved.•Corrosion resistance is improved by {0002} texture and high dislocation density.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2024.111891