Title

Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V in static/dynamic NaCl solutions with different concentrations

Author Identifier

Hongqi Sun

ORCID : 0000-0003-0907-5626

L.C. Zhang

ORCID : 0000-0003-0661-2051

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

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

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

Access Rights

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Research Themes

Natural and Built Environments

Priority Areas

Engineering, technology and nanotechnology

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