Effects of feedstock powder on wear, corrosion, and tribocorrosion performances of Ti-6.5Al-2Zr-1Mo-1V fabricated by additive manufacturing

被引：10

作者：

Du, Zhiheng ^{[1
,2
]}

Cheng, Jun ^{[3
]}

Ran, Xing ^{[4
,5
]}

Wang, Zhe ^{[4
,5
]}

He, Yixuan ^{[6
]}

Zhang, Xiaohang ^{[1
,2
]}

Zhu, Xiangyu ^{[1
,2
]}

Zhang, Jiazhen ^{[1
]}

Xu, Wei ^{[1
,2
]}

Lu, Xin ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Engn Technol, Natl Engn Res Ctr Adv Rolling & Intelligent Mfg, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Shunde Innovat Sch, Foshan 528399, Peoples R China

[3] Northwest Inst Nonferrous Met Res, Shaanxi Key Lab Biomed Met Mat, Xian 710016, Peoples R China

[4] AVIC Heavy Machinery Res Inst, Guiyang 550005, Peoples R China

[5] AVIC Heavy Machinery Co Ltd, Guiyang 550005, Peoples R China

[6] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2025年 / 1010卷

基金：

中国国家自然科学基金;

关键词：

Ti-6.5Al-2Zr-1Mo-1V(TA15) alloy; Laser powder bed fusion (LPBF); Low-cost modified HDH powder; Corrosion-erosion properties; Microstructure; PURE TI; TITANIUM;

D O I：

10.1016/j.jallcom.2024.177748

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, corrosion-erosion performances of Ti-6.5Al-2Zr-1Mo-1V fabricated using two different feedstocks namely gas-atomized (GA) spherical powder and modified hydride-dehydrated (HDH) powder in the PBS solutions were investigated. Results show that the LPBF-ed modified HDH parts exhibit higher corrosion, wear, and tribocorrosion properties than that of LPBF-ed GA and forged samples, such as the wear rates of LPBF-ed modified HDH reduced by about 10 % under both pure mechanical wear and tribocorrosion conditions. This is primarily due to the ultrafine-grain alpha ' phase formed. Additionally, singular and fine alpha ' phase in LPBF-ed modified HDH also mitigates galvanic corrosion typically observed in alpha+beta Ti alloys, thereby further boosting its corrosion resistance. Furthermore, compared with the GA powder, the cost of modified HDH powder was reduced by 58 % (50 vs. 120 $/kg). Cost-effective raw materials together with an excellent combination of corrosion-erosion properties make LPBF-ed modified HDH exhibit broad application.

引用

页数：9

共 45 条

[1] Tribocorrosion behaviour of additively manufactured 0-type Ti-Nb alloy for implant applications [J].