Ultra-low temperature alloy and process for manufacturing the sa

Details Ultra-low temperature alloy and process for manufacturing the sa Ultra-low temperature alloy and process for manufacturing the sa

1986-09-02

1989-07-11

Yee, Deborah

Alloys or metallic compositions

Ferrous

Eight percent or more manganese containing

420 72, 148329, 148 121, 72700, 295277, C22C 3804

Patent

active

048470465

ABSTRACT:
A new Fe-Mn-Al-C-Nb-Si-Cu alloy for use in ultra-low temperature materials is provided. The alloy has the following composition: 25 to 35 percent by weight manganese, 2 to 10 percent by weight aluminum, 0.1 to 0.8 percent by weight carbon, 0.01 to 0.2 percent by weight niobium, 0.05 to 0.5 percent by weight silicon, 0.05 to 1.0 percent by weight copper and the balance of iron. The alloy is manufactured by controlled rolling the ingot containing the elemental constituents, and has a tensile strength of above 350 MPa, an elongation of 40%, and a toughness of above 100 joules at -196.degree. C.

REFERENCES:
patent: 3193884 (1965-07-01), Richardson
J. Charles, "New Cryogenic Materials:Fe-Mn-Al Alloys", Metals Progress, May 1981, pp. 71-74.

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