Investigations of temperature effects on hydrogen diffusion and hydrogen embrittlement of X80 pipeline steel under electrochemical hydrogen charging environment
Publication Name
Corrosion Science
Abstract
The influence of temperature on hydrogen diffusion and hydrogen embrittlement of X80 steel was studied using electrochemical hydrogen charging. The hydrogen diffusion and subsurface hydrogen concentration in the steel increased with increasing the temperature. Macro slow strain rate tensile tests and microstructural analysis were performed to unveil the dependence of hydrogen-induced embrittlement susceptibility on temperature, which suggested a temperature threshold THE, max of 315 K. The demonstration of THE, max would be crucial for determining test temperatures of hydrogen-related engineering material applications.
Open Access Status
This publication is not available as open access
Volume
223
Article Number
111460
Funding Number
QYT2023035
Funding Sponsor
National Natural Science Foundation of China