Sulfide stress cracking characteristics of high strength steels from the viewpoint of fracture mechanics
Book
·
OSTI ID:70057
- Nippon Steel Corp., Kitakyushu (Japan). Yawata R and D Lab.
- Nippon Steel Corp., Shintomi (Japan). Steel Research Lab.
Sulfide stress cracking (SSC) evaluation of high strength OCTG (oil country tubular goods) from the view point of environmental factors has been studied to some extent, but little research has been conducted from the view point of fracture mechanics. In the present study, SSC resistance was evaluated using threshold stress and K{sub 1ssc}. The same ranking of SSC resistance is obtained from both methods. However, SSC resistant steels show higher K{sub 1ssc} than conventional steels even if their respective threshold stresses are the same. For steel products bearing cracks and dents, SSC evaluation using both the threshold stress and the K{sub 1ssc} is suggested.
- OSTI ID:
- 70057
- Report Number(s):
- CONF-940222--
- Country of Publication:
- United States
- Language:
- English
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