Saturation of the DBTT shift of irradiated 12Cr-1MoVW with increasing fluence
Ferritic/martensitic steels are considered one of the prime candidate materials for structural applications in fusion reactors. This class of steel provides many advantages including excellent swelling resistance and high thermal conductivity. A reiew of current results on the suitability of ferritic/martensitic steels reveals their corrosion behavior and postirradiation properties are, in general, quite promising. However, a major concern is the existence in these steels of a ductile-to-brittle transition temperature (DBTT), below which the steel has limited ductility and fails in a brittle mode. Although the DBTT, as measured in a Charpy impact test, may be below room temperature in the unirradiated condition, irradiation can increase the DBTT significantly, and the increase depends on the irradiation temperature. Increases in the DBTT of greater than 100/sup 0/C have been measured following irradiation at 400/sup 0/C and below.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Materials Engineering Associates, Inc., Lanham, MD (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6042929
- Report Number(s):
- CONF-860421-32; ON: DE86010393
- Resource Relation:
- Conference: 2. international conference on fusion reactor materials (ICFRM-2), Chicago, IL, USA, 13 Apr 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Heat treatment effects on toughness of 9Cr-1MoVNb and 12Cr-1MoVW steels irradiated at 365{degrees}C
Heat treatment effects on toughness of 9Cr-1MoVNb and 12Cr-1MoVW steels irradiated at 365 degrees C
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHROMIUM STEELS
DUCTILE-BRITTLE TRANSITIONS
MOLYBDENUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS
CHARPY TEST
DUCTILITY
IRRADIATION
MEDIUM TEMPERATURE
NEUTRON REACTIONS
ALLOYS
BARYON REACTIONS
CHROMIUM ALLOYS
DESTRUCTIVE TESTING
HADRON REACTIONS
IMPACT TESTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NUCLEAR REACTIONS
NUCLEON REACTIONS
STEELS
TENSILE PROPERTIES
TESTING
360103* - Metals & Alloys- Mechanical Properties
700209 - Fusion Power Plant Technology- Component Development & Materials Testing