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- Title
Effect of Heat Treatment on Corrosion Properties of Ti-6Al-4V Titanium Alloy Produced by Electron Powder Bed Fusion.
- Authors
Huang, Junyuan; Zhang, Wei; Xu, Haiying; Fang, Weiping
- Abstract
Electron powder bed fusion (EPBF), as one of the common additive manufacturing techniques, has received increasing attention. EPBF-processed Ti-6Al-4V is widely used in biomedical and aerospace industries. However, titanium alloys prepared by EPBF have large pores and poor corrosion resistance. Heat treatment is a simple and non-polluting way to improve material properties. However, the effect of heat treatment on the corrosion resistance of EPBF-processed Ti-6Al-4V alloy has not been thoroughly researched. In this paper, Ti-6Al-4V samples processed by EPBF were treated with different heat treatment methods. All corrosion tests were performed in 3.5 wt.% NaCl solution at ambient temperature. HT800 has the highest content of β phase, and the smallest grain boundary density, and therefore has the best corrosion resistance. The corrosion current of HT800 is reduced from 0.109 µA/cm2 unheated to 0.022 µA/cm2, a reduction of 79.82%.
- Subjects
HEAT treatment; TITANIUM powder; TITANIUM alloys; CORROSION resistance; POWDERS; ELECTRONS; CRYSTAL grain boundaries
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2024, Vol 76, Issue 6, p3039
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-024-06537-y