Abstract
Storage tanks and pipelines of gaseous fuel are frequently installed in low temperature environ-ment. So, when gaseous fuel contains hydrogen, not only cryogenic embrittlement but also hydrogen embrittlement may occur in the equipments. In this report, the effect of hydrogen on brittle-ductile transition of COR-TEN O steel was studied by carrying out fracture experiments of hydrogen charged and non-charged materials over the temperature range from — 196°C to room temperature. The variations of fracture resistance expressed by CED with temperature for hydrogen charged and non-charged materials are compared. As the result, it is shown that the brittle-ductile transition temperature of hydrogen charged material is lower than that of non-charged one and, although the fracture resistance of charged material naturally becomes smaller in the upper shelf range, not the fracture resistance of non-charged material but that of charged one is a little bit larger in the brittle-ductile transition range.
| Original language | English |
|---|---|
| Pages (from-to) | 1395-1401 |
| Number of pages | 7 |
| Journal | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 73 |
| Issue number | 736 |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
Keywords
- Brittle-Ductile Transition
- CED (Crack Energy Density)
- Fracture Mechanics
- Fracture Resistance
- Hydrogen Embrittlement
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering