Zirconium-based alloy for components in nuclear reactors

Details Zirconium-based alloy for components in nuclear reactors Zirconium-based alloy for components in nuclear reactors

1992-10-16

1994-08-02

Roy, Upendra

Alloys or metallic compositions

Zirconium or hafnium base

148421, 148672, C22C 1600

Patent

active

053343450

ABSTRACT:
A zirconium-based alloy for components in nuclear reactors with excellent resistance both to corrosion by water and water steam and to hydrogen absorption under operating conditions consists of 1.0-2.0 per cent by weight tin, 0.07-0.70 per cent by weight iron, 0.05-0.15 per cent by weight chromium, 0.16-0.40 per cent by weight nickel, 0,015-0.30, preferably 0,015-0.20 per cent by weight niobium, 0.002-0.05, preferably 0.015-0.05 per cent by weight silicon, 0.09-0.20, preferably 0.09-0.16 per cent by weight oxygen, the balance being zirconium and impurities, normally occurring in reactor grade sponge zirconium, of other kinds than the above-mentioned substances.

REFERENCES:
patent: 3271205 (1966-09-01), Winton et al.
patent: 4649023 (1987-03-01), Sabol et al.
patent: 4810461 (1989-03-01), Inagaki et al.
patent: 4879093 (1989-11-01), Garde
patent: 4992240 (1991-02-01), Komatsu et al.
patent: 5211774 (1993-05-01), Garde et al.
Eucken et al. in Zirconium in the Nuclear Industry, 8th Intern Symp., ASTM-STP 1023, 1983 p. 113.

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