Heat-treated zirconium alloy product

Details Heat-treated zirconium alloy product Heat-treated zirconium alloy product

1978-06-12

1980-10-07

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

75177, 148133, C21D 102, C22D 1600

Patent

active

042266475

ABSTRACT:
High tensile strength, creep and corrosion resistant zirconium alloys containing 7.0-10.0 wt % aluminum, 0-3 wt % in total of one or more elements selected from the group consisting of magnesium, tin, chromium, iron, carbon, silicon, yttrium, niobium, molybdenum and beryllium, the balance zirconium and incidental impurities, are produced by annealing cast alloys at a temperature below about 992.degree. C. for a period of time sufficient to produce alloys having a substantially continuous matrix of the ordered intermetallic compound Zr.sub.3 Al. The alloys may initially be hot worked at temperatures about 1000.degree. C., while in the .beta.Zr-Zr.sub.2 Al two phase region, prior to annealing. Preferred alloys contain 7.5-9.5 wt % aluminum, the balance zirconium and incidental impurities.

REFERENCES:
patent: 3125446 (1964-03-01), Johnson et al.
patent: 4000013 (1976-12-01), MacEwen et al.
patent: 4094706 (1978-06-01), Schulson et al.

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