The significant impact of hot isostatic pressing on the corrosion behavior of Ti-6Al-4V alloy prepared by electron beam powder bed fusion

被引：0
作者：
Zheng, Hongyu [1 ,2 ]
Bai, Yun [1 ]
Hou, Wentao [1 ]
Zhai, Zirong [3 ]
Zhang, Lai-Chang [4 ]
Li, Shujun [1 ]
Yang, Rui [1 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
[3] Shanghai Tech Univ, Ctr Adaptat Syst Engn, Sch Creat & Arts, Shanghai, Peoples R China
[4] Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, Perth, WA, Australia
来源：
NPJ MATERIALS DEGRADATION | 2025年 / 9卷 / 01期
基金：
中国国家自然科学基金;
关键词：
ADDITIVE-MANUFACTURED TI-6AL-4V; ELECTROCHEMICAL CORROSION; HEAT-TREATMENT; RESISTANCE; TITANIUM; MICROSTRUCTURE; SURFACE; TI; PASSIVATION; PHOSPHATE;
D O I：
10.1038/s41529-025-00558-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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, beta-phase, texture and morphology of alpha-phase, the morphology of alpha-phase played a dominant role in determining the corrosion performance of EB-PBF processed alloy.
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页数：13
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