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Effect of high-pressure hydrogen on crack growth in carbon steel
- Source :
- Metallurgical Transactions A. 22:2703-2707
- Publication Year :
- 1991
- Publisher :
- Springer Science and Business Media LLC, 1991.
-
Abstract
- The effect of high-pressure hydrogen and temperature on crack growth was studied in wedge-opening-load (WOL) samples of a low-carbon steel. At temperatures above 280 ‡C, a hydrogen pressure of 3 ksi gave an increasing amount of acceleration in crack growth. These conditions approached but were below that needed to give hydrogen attack (HA) in the surrounding matrix. The value ofda/dt increases exponentially with temperature, andQ is roughly equal to that for grain boundary diffusion. The growth is absent atK1 = 0 but varies little withK1 above 15 MPa√m. The value ofda/dt increases steadily with hydrogen pressure in the range of 3 to 21 MPa.
- Subjects :
- Materials science
Structural material
Hydrogen
Carbon steel
Metallurgy
Metals and Alloys
chemistry.chemical_element
Fracture mechanics
engineering.material
Condensed Matter Physics
chemistry
Mechanics of Materials
Hydrogen pressure
High pressure
High pressure hydrogen
engineering
Grain boundary diffusion coefficient
Subjects
Details
- ISSN :
- 23790180 and 03602133
- Volume :
- 22
- Database :
- OpenAIRE
- Journal :
- Metallurgical Transactions A
- Accession number :
- edsair.doi...........ac97c6d9eaa9662227836ad579d7a51d