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

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.

RAS ID

36331

Document Type

Journal Article

Date of Publication

2021

Volume

191

Funding Information

Edith Cowan University Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials Jiangsu Province six talent peaks project

School

School of Engineering

Copyright

subscription content

Publisher

Elsevier

Identifier

Hongqi Sun

ORCID : https://orcid.org/0000-0003-0907-5626

L.C. Zhang

ORCID : https://orcid.org/0000-0003-0661-2051

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

Share

 
COinS
 

Link to publisher version (DOI)

10.1016/j.corsci.2021.109728