High-temperature fatigue life of type 316 stainless steel containing irradiation induced helium

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6320754

Grossbeck, M L; Liu, K C

Specimens of 20%-cold-worked AISI type 316 stainless steel were irradiated in the High Flux Isotope Reactor (HFIR) at 550/sup 0/C to a maximum damage level of 15 dpa and a transmutation produced helium level of 820 at. ppM. Fully reversed strain controlled fatigue tests were performed in a vacuum at 550/sup 0/C. No significant effect of the irradiation on low-cycle fatigue life was observed; however, the strain range of the 10/sup 7/ cycle endurance limit decreased from 0.35 to 0.30%. The relation between total strain range and number of cycles to failure was found to be ..delta..epsilon/sub T/ = 0.02N/sub f//sup -0/ /sup 12/ + N/sub f//sup -0/ /sup 6/ for N/sub f/ < 10/sup 7/ cycles.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6320754
• Report Number(s): CONF-810831-28; ON: DE81028879
• Country of Publication: United States
• Language: English

Related Subjects

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ALLOYS
BARYON REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELEMENTS
FATIGUE
FLUIDS
GASES
HADRON REACTIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HELIUM
HIGH TEMPERATURE
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NEUTRON REACTIONS
NICKEL ALLOYS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RARE GASES
STAINLESS STEEL-316
STAINLESS STEELS
STEELS