A study on the characteristics of part-through crack growth of low-alloy steel in corrosive environment
- 1. Tohoku Univ., Sendai (Japan). Faculty of Engineering
Description
In order to investigate the characteristics of surface crack growth behavior, the fatigue test and potential measurement using a simulated surface crack specimen for low-alloy steel (STS-42) were achieved in pure water at a temperature of 50degC and an oxygen content of 2 ppm. The potential observed in the surface crack plane showed that the differences depended on the crack depth. With time, the potential around the crack surface showed more noble values than at the deepest tip of crack. This reason could be explained by the difference in oxygen content along the crack plane due to the effect of water flow and crack shape. The mechanism of the generation of the hydrogen-assisted intergranular fracture mode observed at crack surface was also discussed based on an electrochemical aspect. (author)
Additional details
Publishing Information
- Journal Title
- Nippon Kikai Gakkai Ronbunshu, A Hen
- Journal Volume
- 55
- Journal Issue
- 514
- Series
- Nippon Kikai Gakkai Ronbunshu, A Hen.
- Journal Page Range
- 1281-1285
- ISSN
- 0387-5008
- CODEN
- NKGAD
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 20083691
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CORROSION FATIGUE; CRACK PROPAGATION; FRACTURE MECHANICS; MEDIUM TEMPERATURE; OXYGEN; PRESSURE VESSELS; STEEL-MNNIMO; WATER; WATER COOLED REACTORS
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CONTAINERS; ELEMENTS; FATIGUE; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; LOW ALLOY STEELS; MANGANESE ALLOYS; MECHANICAL PROPERTIES; MECHANICS; MOLYBDENUM ADDITIONS; NICKEL ADDITIONS; NONMETALS; OXYGEN COMPOUNDS; POLAR SOLVENTS; REACTORS; SOLVENTS; STEELS