Electrochemical Hydrogen Charging on Corrosion Behavior of Ti-6Al-4V Alloy in Artificial Seawater

被引：22
|
作者：
Qiao, Yanxin [1 ]
Qin, Yue [1 ,2 ]
Zhou, Huiling [1 ]
Yang, Lanlan [1 ]
Wang, Xiaojing [1 ]
Wang, Zhengbin [3 ]
Liu, Zhenguang [1 ]
Zou, Jiasheng [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China
[2] Yangzhou Changelight Co Ltd, Yangzhou 225012, Peoples R China
[3] Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China
来源：
CHINESE JOURNAL OF MECHANICAL ENGINEERING | 2024年 / 37卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Ti-6Al-4V alloy; Hydrogen charging; Electrochemical corrosion; Passive film; COMMERCIALLY PURE TITANIUM; STAINLESS-STEEL; OXIDE FILMS; MICROSTRUCTURE; TI-4AL-2V-1MO-1FE; STABILITY; EVOLUTION; FLUORIDE; NITROGEN; DAMAGE;
D O I：
10.1186/s10033-023-00983-6
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This study employs advanced electrochemical and surface characterization techniques to investigate the impact of electrochemical hydrogen charging on the corrosion behavior and surface film of the Ti-6Al-4V alloy. The findings revealed the formation of gamma-TiH and delta-TiH2 hydrides in the alloy after hydrogen charging. Prolonging hydrogen charging resulted in more significant degradation of the alloy microstructure, leading to deteriorated protectiveness of the surface film. This trend was further confirmed by the electrochemical measurements, which showed that the corrosion resistance of the alloy progressively worsened as the hydrogen charging time was increased. Consequently, this work provides valuable insights into the mechanisms underlying the corrosion of Ti-6Al-4V alloy under hydrogen charging conditions.
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页数：13
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