High temperature alloys and members thereof

Metal treatment – Compositions – Heat treating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

75122, 75128W, 148 12E, 148 31, 176 88, C22C 3844, C21D 702

Patent

active

040408760

ABSTRACT:
An alloy consisting essentially of from about 14% to 19% chromium, from 25 to 35% of nickel, from about 2% to 3% molybdenum, from about 0.1% to 1% of silicon, up to 0.5% of manganese, from about 0.03 to 0.05% carbon, up to about 0.01% sulfur, up to about 0.01% of phosphorus, up to 0.01% boron, up to about 0.01% oxygen, up to about 0.02% nitrogen, small amounts of incidental impurities, and the balance being iron, the alloy having an N.sub.v (average electron vacancy number) value of between 1.6 and 2.8, has an unexpected combination of properties enabling it to be formed by hot and cold working and heat treatment into components and members particularly suitable for use in nuclear reactors wherein the components are subjected to molten sodium, where the corrosion of the surface of the alloy is not in excess of the order of 1 to 2 mils per year, and the alloy exhibits low swelling when exposed to intense radiation, while exhibiting good physical properties at temperatures of up to 1325.degree. F. Worked and heat treated alloy members are usable as fuel cladding, grid supports, ducts and other sodium contacting in-core components that may be spaced in close predetermined relationship to ensure high reactor performance, particularly in breeder reactors, for the desired useful life thereof.

REFERENCES:
patent: 2403128 (1946-07-01), Scott et al.
patent: 2879194 (1959-03-01), Eichelberger
patent: 3065067 (1962-11-01), Aggen
patent: 3199978 (1965-08-01), Brown et al.
patent: 3582318 (1971-06-01), Szumachowski
patent: 3592632 (1971-07-01), Gibson et al.
patent: 3837846 (1974-09-01), Becker et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High temperature alloys and members thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High temperature alloys and members thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature alloys and members thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1226115

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.