Enhanced hydrogen embrittlement resistance of additive manufacturing Ti-6Al-4V alloy with basket weave structure

被引：6

作者：

Cheng, Hongxu ^{[1
]}

Xu, Jiajing ^{[2
]}

Luo, Hong ^{[1
]}

Duan, Guoqing ^{[2
]}

Zhao, Qiancheng ^{[1
]}

Guo, Yueling ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China

[2] Wuhan Second Ship Design & Res Inst, Wuhan 430064, Peoples R China

[3] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

来源：

CORROSION SCIENCE | 2024年 / 236卷

基金：

中国国家自然科学基金;

关键词：

Titanium; Hydrogen embrittlement; Microstructure; Additive manufacturing; SHAPED METAL-DEPOSITION; HIGH-CYCLE FATIGUE; TITANIUM-ALLOY; GRAIN-BOUNDARY; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; BEHAVIOR; DUPLEX; DISLOCATION; DIFFUSION;

D O I：

10.1016/j.corsci.2024.112231

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hydrogen embrittlement (HE) behavior of tungsten inert gas arc additive manufacturing (AM) Ti-6Al-4V alloy was studied through tensile tests with/without hydrogen charging. The influence of hydrogen on the microstructure and crack propagation of AM Ti-6Al-4V alloy was investigated. The results indicated that the AM Ti-6Al-4V alloy with a basket weave structure alleviated local stress at grain boundaries during deformation, thus avoiding intergranular cracking and brittle fracture. The AM alloy displayed less HE susceptibility than that of the wrought alloy, which was due to the basket weave structure hindering the propagation of hydrogen-induced cracks, thereby improving the HE resistance.

引用

页数：13