FE-NI-MN-AL-CR ALLOYS AND METHODS FOR PRODUCTION THEREOF
First Claim
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1. An alloy comprising lamellae of a B2 ordered phase and lamellae of a face-centered cubic (f.c.c.) phase, wherein the average composition of the alloy comprises from 27% to 33% iron, 17% to 23% nickel, 32% to 38% manganese and 12% to 18% aluminum, and 2.5% to 5% chromium, wherein the composition is described in terms of atomic percentages.
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Abstract
Alloys including iron, nickel, manganese, aluminum and chromium are disclosed. The alloys have high strength and ductility. The alloys are prepared from readily available transition metals, and can be used in applications where properties similar to steel are necessary or advantageous.
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19 Claims
- 1. An alloy comprising lamellae of a B2 ordered phase and lamellae of a face-centered cubic (f.c.c.) phase, wherein the average composition of the alloy comprises from 27% to 33% iron, 17% to 23% nickel, 32% to 38% manganese and 12% to 18% aluminum, and 2.5% to 5% chromium, wherein the composition is described in terms of atomic percentages.
- 10. An alloy comprising lamellae of a B2 ordered phase and lamellae of an f.c.c. phase, wherein the average composition of the alloy comprises from 27% to 33% iron, 17% to 23% nickel, 32% to 38% manganese and 12% to 18% aluminum, and greater than 5% to 7.5% chromium, wherein the composition is described in terms of atomic percentages.
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