Environmentally assisted cracking of LWR materials.
The effect of dissolved oxygen level on fatigue life of austenitic stainless steels is discussed and the results of a detailed study of the effect of the environment on the growth of cracks during fatigue initiation are presented. Initial test results are given for specimens irradiated in the Halden reactor. Impurities introduced by shielded metal arc welding that may affect susceptibility to stress corrosion cracking are described. Results of calculations of residual stresses in core shroud weldments are summarized. Crack growth rates of high-nickel alloys under cyclic loading with R ratios from 0.2-0.95 in water that contains a wide range of dissolved oxygen and hydrogen concentrations at 289 and 320 C are summarized.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 8116
- Report Number(s):
- ANL/ET/CP-94125; TRN: AH200117%%112
- Resource Relation:
- Conference: 25th Water Reactor Safety Information Meeting, Bethesda, MD (US), 10/20/1997--10/22/1997; Other Information: PBD: 5 Dec 1997
- Country of Publication:
- United States
- Language:
- English
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