Title

Investigations of temperature effects on hydrogen diffusion and hydrogen embrittlement of X80 pipeline steel under electrochemical hydrogen charging environment

Authors

Jiaqing Li, Fuzhou University
Ziyue Wu, Fuzhou University
Lijie Zhu, Fuzhou University
Zhuwu Zhang, Fuzhou University
Lin Teng, Fuzhou University
Liang Zhang, Joint International Research Laboratory for Light Alloys, MOE
Cheng Lu, University of Wollongong
Rui Wang, University of Wollongong
Che Zhang, University of Melbourne

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