The significant impact of hot isostatic pressing on the corrosion behavior of Ti-6Al-4V alloy prepared by electron beam powder bed fusion
This work investigated the effect of hot isostatic pressing (HIP) on the corrosion behavior of Ti-6Al-4V samples prepared by electron beam powder bed fusion (EB-PBF). After the HIP treatment, the TiO2 content decreased but the growth rate of passivation films increased, leading to increase in internal defect density, thereby degrading the corrosion resistance. Amongst the different factors impacted by HIP including pore defects, β-phase, texture and morphology of α-phase, the morphology of α-phase played a dominant role in determining the corrosion performance of EB-PBF processed alloy.
Authors
- Rui Yang (ORCID: https://orcid.org/0000-0002-1886-5286)
- Wentao Hou (ORCID: https://orcid.org/0000-0001-5665-9478)
- Lai‐Chang Zhang (ORCID: https://orcid.org/0000-0003-0661-2051)
- Yun Bai (ORCID: https://orcid.org/0000-0003-3104-1393)
- Zirong Zhai
- Hongyu Zheng (ORCID: https://orcid.org/0000-0002-4405-2094)
- Shujun Li (ORCID: https://orcid.org/0000-0001-9664-9864)
Institutions
- Edith Cowan University (AU)
- University of Science and Technology of China (CN)
- Shanghai University of Engineering Science (CN)
- Chinese Academy of Sciences (CN)
Publication Details
- Journal
- npj Materials Degradation
- Published
- 2025-02-18
- DOI
- https://doi.org/10.1038/s41529-025-00558-x
- Citations
- 5
- Primary Topic
- Additive Manufacturing Materials and Processes
- Type
- article
- Field-Weighted Citation Impact
- 3.57
Funders
- National Natural Science Foundation of China