Microstructure and toughness of Cr-W and Cr-V ferritic steels
Creators
- 1. National Research Inst. for Metals, Sakura, Ibaraki (Japan). Tsukuba Lab.
Description
In order to obtain an optimum alloy composition of reduced-activation Cr-W-V ferritic steels, the microstructural evolution during thermal aging at 823-973 K and its effect on the toughness were investigated for simple Cr-W and Cr-V steels by means of transmission electron microscopy and Charpy impact testing. The microstructural evolution of the Cr-W steels was similar to that of the conventional Cr-Mo steels. Carbides precipitated in the martensite and the intermetallic compound Fe2W precipitated in the δ-ferrite of the Cr-W steels. On the other hand, only carbides precipitated in both the martensite and the δ-ferrite of the Cr-V steels. The effect of Cr, W and V on the thermal embrittlement is discussed by taking account of the precipitation behavior. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Nuclear Materials
- Journal Volume
- 155-157
- Journal Issue
- pt.B
- Series
- J. Nucl. Mater.
- Journal Page Range
- 656-661
- ISSN
- 0022-3115
- CODEN
- JNUMA
Conference
- Title
- 3. international conference on fusion reactor materials (ICFRM-3).
- Dates
- 4-8 Oct 1987.
- Place
- Karlsruhe (Germany, F.R.).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20010114
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- AGING; CARBIDES; CHARPY TEST; CHEMICAL COMPOSITION; CHROMIUM STEELS; DUCTILE-BRITTLE TRANSITIONS; EMBRITTLEMENT; EXPERIMENTAL DATA; FERRITIC STEELS; FRACTOGRAPHY; HIGH TEMPERATURE; MICROSTRUCTURE; PHASE STABILITY; THERMONUCLEAR REACTOR MATERIAL; TRANSMISSION ELECTRON MICROSCO; TUNGSTEN ADDITIONS; VANADIUM ADDITIONS
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CARBON COMPOUNDS; CHROMIUM ALLOYS; CRYSTAL STRUCTURE; DATA; DESTRUCTIVE TESTING; ELECTRON MICROSCOPY; HIGH ALLOY STEELS; IMPACT TESTS; INFORMATION; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; MATERIALS TESTING; MECHANICAL TESTS; MICROSCOPY; NUMERICAL DATA; STABILITY; STAINLESS STEELS; STEELS; TESTING