Sensitization and IGSCC susceptibility prediction in stainless steel pipe weldments
- Oregon Graduate Inst. of Science and Technology, Beaverton, OR (United States)
- Pacific Northwest Lab., Richland, WA (United States)
An analytical model, based on prediction of chromium depletion, has been developed for predicting thermomechanical effects on austenitic stainless steel intergranular stress corrosion cracking (IGSCC) susceptibility. Model development and validation is based on sensitization development analysis of over 30 Type 316 and 304 stainless steel heats. The data base included analysis of deformation effects on resultant sensitization development. Continuous Cooling sensitization behavior is examined and modelled with and without strain. Gas tungsten are (GTA) girth pipe weldments are also characterized by experimental measurements of heat affected zone (HAZ) temperatures, strains and sensitization during/after each pass; pass by pass thermal histories are also predicted. The model is then used to assess pipe chemistry changes on IGSCC resistance.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10109426
- Report Number(s):
- PNL-SA--20244; CONF-911179--2; ON: DE92004509
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement and modeling of sensitization development in stainless steels as a function of thermomechanical processing
Deformation induced microstructural and microchemical changes during thermomechanical treatment