Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V in static/dynamic NaCl solutions with different concentrations
ORCID : 0000-0003-0907-5626
ORCID : 0000-0003-0661-2051
School of Engineering
Edith Cowan University Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials Jiangsu Province six talent peaks project
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.
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