Alloys for a liquid metal fast breeder reactor
An gamma-prime was precipitation-hardened iron-chromium-nickel alloy was designed with emphasis on minimum nickel and chromium contents to reduce the swelling tendencies of these alloys when used in liquid metal fast breeder reactors. The precipitation-hardening components have been designed for phase stability and such residual elements as silicon and boron, also have been selected to minimize swelling. Using the properties of these alloys in one design would result in an increased breeding ratio over 20% cold worked stainless steel, a reference material, of 1.239 to 1.310 and a reduced doubling time from 15.8 to 11.4 years. The gross stoichiometry of the alloying composition comprises from about 0.04% to about 0.06% carbon, from about 0.05% to about 1.0% silicon, up to about 0.1% zirconium, up to about 0.5% vanadium, from about 24% to about 31% nickel, from 8% to about 11% chromium, from about 1.7% to about 3.5% titanium, from about 1.0% to about 1.8% aluminum, from about 0.9% to about 3.7% molybdenum, from about 0.04% to about 0.8% boron, and the balance iron with incidental impurities.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4172742
- OSTI ID:
- 5418983
- Country of Publication:
- United States
- Language:
- English
Similar Records
Precipitation hardenable iron-nickel-chromium alloy having good swelling resistance and low neutron absorbence
Precipitation hardenable iron-nickel-chromium alloy having good swelling resistance and low neutron absorbence
Related Subjects
250500 -- Energy Storage-- Flywheels
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
BREEDER REACTORS
BREEDING RATIO
CARBON ADDITIONS
CHROMIUM ALLOYS
CONVERSION RATIO
DESIGN
EPITHERMAL REACTORS
FABRICATION
FAST REACTORS
FBR TYPE REACTORS
FUEL CANS
HARDENING
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHASE STUDIES
PRECIPITATION HARDENING
REACTOR MATERIALS
REACTORS
SILICON ADDITIONS
SILICON ALLOYS
STEELS
SWELLING
TENSILE PROPERTIES
TITANIUM ALLOYS
VANADIUM ADDITIONS
VANADIUM ALLOYS
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS