Method for fabricating uranium alloy articles without shape memo

Details Method for fabricating uranium alloy articles without shape memo Method for fabricating uranium alloy articles without shape memo

1980-05-21

1985-01-15

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148131, C22F 118

Patent

active

044937377

ABSTRACT:
Uranium-rich niobium and niobium-zirconium alloys possess a characteristic known as shape memory effect wherein shaped articles of these alloys recover their original shape when heated. The present invention circumvents this memory behavior by forming the alloys into the desired configuration at elevated temperatures with "cold" matched dies and maintaining the shaped articles between the dies until the articles cool to ambient temperature.

REFERENCES:
patent: 2830921 (1958-04-01), Creutz
patent: 2914433 (1959-11-01), McGeary et al.
patent: 3567523 (1971-03-01), Jackson et al.
patent: 3595060 (1971-07-01), Hundy
patent: 3802930 (1974-04-01), Brook et al.
patent: 3864176 (1975-02-01), Swanson
patent: 3953253 (1976-04-01), Clark
patent: 3954515 (1976-05-01), Swanson
patent: 4126492 (1978-11-01), Okunishi et al.
Vandermeer et al., "Shape Memory in a Uranium +14 at. % Niobium Alloy," Metallurgica, vol. 12, 1978, pp. 243-248.

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