Published March 1991 | Version v1
Journal article Metadata-only

Impact behavior of 9Cr-1MoVNb and 12Cr-1MoVW steels irradiated in HFIR

Creators

  • 1. Oak Ridge National Lab., TN (USA). Metals and Ceramics Div.

Description

Charpy compact specimens of 9Cr-1MoVNb and 12Cr-1MoVW steels were irradiated in the High Flux Isotope Reactor (HFIR) at 300 and 400deg C to displacment-damage levels as high as 42 dpa. For both steels, irradiation caused large increases in the ductile-brittle transition temperatrure (DBTT) and a decrese in the upper-shelf energy (USE). The increase in DBTT and the decrease in USE were greater at 400deg C than at 300deg C. At 400deg C, irradiation to ∝ 40 dpa produced shifts in DBTT of 204 and 242deg C for the 9Cr-1MoVNb and 12Cr-1MoVW steels, respectively. These are the largest shifts ever observed for these steels and are attributed to the high helium concentration generated during irradiation in HFIR. (orig.)

Additional details

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
179-181
Journal Issue
pt.A
Series
J. Nucl. Mater.
Journal Page Range
733-736
ISSN
0022-3115
CODEN
JNUMA

Conference

Title
4. international conference on fusion reactor materials (ICFRM-4).
Dates
4-8 Dec 1989.
Place
Kyoto (Japan).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
23000755
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHARPY TEST; COMPARATIVE EVALUATIONS; DAMAGING NEUTRON FLUENCE; DUCTILE-BRITTLE TRANSITIONS; HIGH TEMPERATURE; IMPACT STRENGTH; PHYSICAL RADIATION EFFECTS; STEEL-CR12MOV; STEEL-CR9MONBV; TEMPERATURE DEPENDENCE; TUNGSTEN ALLOYS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CORROSION RESISTANT ALLOYS; DESTRUCTIVE TESTING; EVALUATION; FERRITIC STEELS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IMPACT TESTS; IRON ALLOYS; IRON BASE ALLOYS; MARTENSITIC STEELS; MATERIALS TESTING; MECHANICAL PROPERTIES; MECHANICAL TESTS; MOLYBDENUM ADDITIONS; MOLYBDENUM ALLOYS; NEUTRON FLUENCE; NIOBIUM ADDITIONS; RADIATION EFFECTS; STAINLESS STEELS; STEELS; TESTING; VANADIUM ADDITIONS

Optional Information

Contract/Grant/Project number
Contract DE-AC05-84OR21400