Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V in static/dynamic NaCl solutions with different concentrations
Document Type
Journal Article
Publication Title
Corrosion Science
Volume
191
Publisher
Elsevier
School
School of Engineering
RAS ID
36331
Funders
Edith Cowan University Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials Jiangsu Province six talent peaks project
Abstract
In this work, the corrosion and passivation behavior of Ti-6Al-4V produced by laser powder bed fusion (L-PBF) were investigated in different concentration of NaCl solutions under static and dynamic conditions. Oxide films including TiO2, Ti2O3, TiO were formed on L-PBF-produced Ti-6Al-4V. The film thickness increased under both test conditions with increasing the Cl− concentration, and the film contained more TiO2 in dynamic conditions under the same Cl− concentration. The mechanism of the corrosion behavior and film growth under different Cl− concentration and electrolyte conditions were discussed by the relevant electrochemical and surface characteristic measurements, e.g. Mott-Schottky analysis, X-ray photoelectron spectroscopy.
DOI
10.1016/j.corsci.2021.109728
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Comments
Qin, P., Chen, L. Y., Liu, Y. J., Jia, Z., Liang, S. X., Zhao, C. H., . . . Zhang, L. C. (2021). Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V in static/dynamic NaCl solutions with different concentrations. Corrosion Science, 191, article 109728. https://doi.org/10.1016/j.corsci.2021.109728