The effect of hydrogen isotopes and helium on the tensile properties of 21-6-9 stainless steel
High-energy-rate-forged (HERF) stainless steels are used as the materials of construction for pressure vessels designed for the containment of hydrogen and its isotopes. Hydrogen and helium, the decay product of tritium, are known to embrittle these materials. HERF stainless steels have a relatively good resistance to hydrogen-and-helium-induced embrittlement when compared to annealed stainless steels due to their high number density of dislocations, which act as traps for hydrogen and helium. However, the degree of embrittlement in these materials can vary considerably because of microstructure and yield strength variations introduced during the forging process. In this study the effect of hydrogen and tritium on the tensile properties of 21-6-9 stainless steel was measured as a function of HERF yield strength in the range of 660 to 930 MPa. The effect of microstructure was studied also be conducting tensile tests with HERF and annealed samples.
- Research Organization:
- Westinghouse Savannah River Co., Aiken, SC (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 5380343
- Report Number(s):
- WSRC-MS-90-82; CONF-9004146-10; ON: DE92010700
- Resource Relation:
- Conference: 16. DOE compatibility, aging and service life conference, Livermore, CA (United States), 24-26 Apr 1990
- Country of Publication:
- United States
- Language:
- English
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The effects of hydrogen isotopes and helium on the tensile properties of 21-6-9 stainless steel
The effects of hydrogen isotopes and helium on the tensile properties of 21-6-9 stainless steel
Related Subjects
36 MATERIALS SCIENCE
HYDROGEN ISOTOPES
CONTAINMENT
STAINLESS STEEL-21-6-9
EMBRITTLEMENT
ANNEALING
FORGING
HELIUM
MICROSTRUCTURE
PRESSURE VESSELS
TENSILE PROPERTIES
TRITIUM
VERY HIGH PRESSURE
ALLOYS
AUSTENITIC STEELS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHROMIUM ALLOYS
CONTAINERS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
FABRICATION
FLUIDS
GASES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MANGANESE ALLOYS
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
NICKEL ALLOYS
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
RARE GASES
STEEL-CR21MN9NI6
STEELS
YEARS LIVING RADIOISOTOPES
080200* - Hydrogen- Storage
Transport & Handling
360103 - Metals & Alloys- Mechanical Properties
360106 - Metals & Alloys- Radiation Effects