Reduced-activation ferritic steels: A comparison with Cr-Mo steels
''Reduced-activation'' ferritic steels are being developed to replace the Cr-Mo steels presently being considered for fusion-reactor applications. To meet the reduced-activation criteria, the steels cannot contain Mo, Nb, Ni, Cu, and N. Tungsten is proposed as a substitute for molybdenum and niobium is replaced by tantalum and an increased use of vanadium. An initial series of Cr-W steels have been produced that are analogous to the Cr-Mo steels. Microstructural examination, tempering studies, tensile tests, and Charpy impact tests indicate that three Cr-W steels with 9 to 12% Cr are comparable to the 9Cr-1MoVNb and 12Cr-1MoVW steels, which are presently the primary candidate ferritic steels for fusion applications.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5951539
- Report Number(s):
- CONF-871036-4; ON: DE88000332
- Country of Publication:
- United States
- Language:
- English
Similar Records
Heat treatment behavior and tensile properties of Cr-W steels
A comparison of low-chromium and high-chromium reduced-activation steels for fusion applications
Related Subjects
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700206 -- Fusion Power Plant Technology-- Environmental Aspects
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
ACTIVATION ANALYSIS
ALLOYS
CHARPY TEST
CHEMICAL ANALYSIS
CRYSTAL STRUCTURE
DESTRUCTIVE TESTING
ELEMENTS
FERRITIC STEELS
IMPACT TESTS
IRON ALLOYS
IRON BASE ALLOYS
MANAGEMENT
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALS
MICROSTRUCTURE
MOLYBDENUM
NIOBIUM
RADIOACTIVE WASTE DISPOSAL
STEELS
TANTALUM
TESTING
THERMONUCLEAR REACTORS
TRANSITION ELEMENTS
TUNGSTEN
VANADIUM
WASTE DISPOSAL
WASTE MANAGEMENT