Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V under various prior plastic deformation strains

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成果类型：

期刊论文

作者：

Qin, P.;Chen, L. Y.;Liu, Y. J.;Liang, S. X.;Sun, H.;...

通讯作者：

Zhang, L

作者机构：

[Qin, P.; Zhang, L. C.] Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia.

[Chen, L. Y.] Jiangsu Univ Sci & Technol, Sch Mat Sci & Technol, Zhenjiang 212003, Jiangsu, Peoples R China.

[Liu, Y. J.] Changsha Univ Sci & Technol, Inst Met, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.

[Liang, S. X.] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China.

[Sun, H.] Univ Western Australia, Sch Mol Sci, 35 Stirling Highway, Perth, WA 6009, Australia.

通讯机构：

[Zhang, L ] E

Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia.

语种：

英文

关键词：

Laser powder bed fusion;Titanium;Corrosion;Oxide film;NaCl;Compressive strain

期刊：

Corrosion Science

ISSN：

0010-938X

年：

2024

卷：

230

页码：

111919

DOI：

10.1016/j.corsci.2024.111919

基金类别：

Jiangsu Province six talent peaks project [XCL-117]; ECU Postgraduate Research Scholarship; University, State and Commonwealth Governments; [G1006320]

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

This work investigated the corrosion behavior of LPBF-produced Ti-6Al-4V under varying compression strains in a 3.5 wt% NaCl solution. It identifies that increasing compression strain causes significant alterations in the acicular alpha'-Ti phase (coarsening, breakage, and further coarsening). Corrosion resistance decreases with higher strains due to deformed alpha'-Ti phases, leading to increased film growth kinetics (from 0.09x 10-10 cm2/s increase to 12.75 x 10-10 cm2/s). Samples under higher strains (e.g., 32%) exhibit fluctuations in corrosion behavior due to initiated cracks and subseque...

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Corrosion and passivation behavior of laser powder bed fusion produced Ti-6Al-4V under various prior plastic deformation strains

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