Heat treatment effects on impact toughness of 9Cr-1MoVNb and 12Cr-1MoVW steels irradiated to 100 dpa
Description
Plates of 9Cr-1MoVNb and 12Cr-1MoVW steels were given four different heat treatments: two normalizing treatments were used and for each normalizing treatment two tempers were used. Miniature Charpy specimens from each heat treatment were irradiated to ∼19.5 dpa at 365 degrees C and to ∼100 dpa at 420 degrees C in the Fast Flux Test Facility (FFTF). In previous work, the same materials were irradiated to 4-5 dpa at 365 degrees C and 35-36 dpa at 420 degrees C in FFTF. The tests indicated that prior austenite grain size, which was varied by the different normalizing treatments, had a significant effect on impact behavior of the 9Cr-1MoVNb but not on the 12Cr-1MoVW. Tempering treatment had relatively little effect on the shift in DBTT for both steels. Conclusions are presented on how heat treatment can be used to optimize impact properties
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Additional details
Publishing Information
- Imprint Title
- Fusion materials semiannual progress report for period ending June 30, 1997
- Imprint Pagination
- 358 p.
- Journal Page Range
- p. 121-128.
- Report number
- DOE/ER--0313/22
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29021932
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Progress Report
- Descriptors DEI
- CHARPY TEST; CHROMIUM BASE ALLOYS; DAMAGING NEUTRON FLUENCE; FERRITIC STEELS; HEAT TREATMENTS; IMPACT STRENGTH; PHYSICAL RADIATION EFFECTS; PROGRESS REPORT; TEMPERATURE DEPENDENCE; THERMONUCLEAR REACTOR MATERIALS
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHROMIUM ALLOYS; DESTRUCTIVE TESTING; DOCUMENT TYPES; IMPACT TESTS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; MATERIALS TESTING; MECHANICAL PROPERTIES; MECHANICAL TESTS; NEUTRON FLUENCE; RADIATION EFFECTS; STEELS; TESTING; TRANSITION ELEMENT ALLOYS