Synergic effects of temperature and pressure on the hydrogen diffusion and dissolution behaviour of X80 pipeline steel

被引：1
|
作者：
Gao, Ruizhe [1 ]
Xing, Baihui [1 ]
Yang, Chao [1 ]
Jiang, Xinyi [1 ]
Shang, Juan [1 ,2 ]
Hua, Zhengli [1 ,3 ]
机构：
[1] Zhejiang Univ, Inst Proc Equipment, Hangzhou 310027, Zhejiang, Peoples R China
[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Ctr Energy Syst Design CESD, 744 Motooka, Fukuoka 8190395, Japan
[3] Zhejiang Univ, Hydrogen Energy Inst, Hangzhou 310027, Zhejiang, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 240卷
关键词：
Hydrogen embrittlement; Hydrogen permeation; Temperature effect; Trap sites density; FATIGUE-CRACK GROWTH; EMBRITTLEMENT SUSCEPTIBILITY; CARBON-STEELS; IRON; PERMEATION; MECHANISM; FUGACITY; METALS;
D O I：
10.1016/j.corsci.2024.112468
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gas-phase hydrogen permeation experiments were conducted on X80 steel at temperatures from-15 degrees C to 60 degrees C and hydrogen pressures of 1, 4, 8 MPa. Hydrogen trap densities were determined, and a method for calculating nonlinear hydrogen concentration distribution was established and verified. Results reveal different temperature dependencies for hydrogen concentrations at varying pressures. At 4 and 8 MPa, the hydrogen concentration increases with temperature, whereas at 1 MPa, it initially decreases before increasing. Additionally, the influences of hydrogen pressure, hydrogen trap binding energy, and hydrogen trap density on this trend are discussed.
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收藏
页数：12
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