A study on reducing hydrogen content in steel using ultrasonic cavitation process

被引：2
|
作者：
Liu, Jiyan [1 ]
Wang, Yuhao [1 ]
Liu, Wang [2 ]
Chen, Xiaohui [1 ]
Du, Fengshan [1 ]
机构：
[1] Yanshan Univ, Natl Engn Res Ctr Equipment & Technol Cold Strip R, Qinhuangdao 066004, Hebei, Peoples R China
[2] Yanshan Univ, Coll Environm & Chem Engn, Qinhuangdao 066004, Hebei, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 226卷
基金：
中国国家自然科学基金;
关键词：
Carban steel; Low alloy steel; Hot extraction analyzer; Hydrogen embrittlement; Ultrasonic cavitation; Hydrogen release; EMBRITTLEMENT;
D O I：
10.1016/j.corsci.2023.111657
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a novel process utilizing ultrasonic cavitation(UC) was proposed to decrease hydrogen content in steel. Electrochemical hydrogen-charging and UC were performed on steels with different elemental species and ratios, and hydrogen embrittlement(HE) susceptibility was evaluated by slow strain rate tensile(SSRT). UC effectively reduced hydrogen-induced plasticity loss by removing hydrogen trapped by traps, particularly in SA508Gr.3. Dehydrogenation effects and recovery mechanisms were explored. Hydrogen trapped by low-energy traps played a critical role in hydrogen-induced hardening. The cleavage platforms of the specimen after UC was reduced, but a large number of microcracks appeared in the fracture due to residual hydrogen.
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收藏
页数：9
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