Abstract

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.

Document Type

Journal Article

Date of Publication

12-1-2025

Volume

9

Issue

1

Funding Information

National Natural Science Foundation of China (U2241245, 52321001) / CAS Interdisciplinary Innovation Team Project of China / Opening Project of National Key Laboratory of Shock Wave and Detonation Physics (2022JCJQLB05702) / Aeronautical Science Foundation of China (2022Z053092001)

School

Centre for Advanced Materials and Manufacturing / School of Engineering

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Publisher

Nature

Identifier

Lai Chang Zhang: https://orcid.org/0000-0003-0661-2051

Comments

Zheng, H., Bai, Y., Hou, W., Zhai, Z., Zhang, L. C., Li, S., & Yang, R. (2025). The significant impact of hot isostatic pressing on the corrosion behavior of Ti-6Al-4V alloy prepared by electron beam powder bed fusion. npj Materials Degradation, 9. https://doi.org/10.1038/s41529-025-00558-x

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Link to publisher version (DOI)

10.1038/s41529-025-00558-x