| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Hydrogen Content and Charpy Toughness of Pipeline Steels With Different Hydrogen Charging Processes |
| Author(s) |
Xin Pang, Su Xu |
| On-Site Speaker (Planned) |
Xin Pang |
| Abstract Scope |
The hydrogen embrittlement of pipeline steels has become a major design concern for the transportation of pure hydrogen gas or hydrogen blends using pipeline, especially at high design stresses. Quantification of the effects requires measurement of hydrogen content in test samples and suitable test controls to simulate the practical service conditions. In this work, the total hydrogen content in pipeline steels pre-charged using gaseous and electrolytic methods was measured via LECO analysis. The effects of charging methods, charging conditions, and electroplated Pd surface coating on the hydrogen content of the specimens were studied. Ex-situ Charpy tests have been conducted at room temperature to investigate the hydrogen effects on the impact fracture toughness properties of the steels. The results can provide a basis to quantify the influences of hydrogen charging process on hydrogen uptake of pipeline steels and assess their effects on the fracture toughness properties of the steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |