Iron base high temperature alloy and method of making

Details Iron base high temperature alloy and method of making Iron base high temperature alloy and method of making

2005-01-11

2005-01-11

Yee, Deborah (Department: 1742)

Metal treatment

Stock

Ferrous

C148S333000, C148S423000, C148S419000, C148S442000, C148S548000

Reexamination Certificate

active

06841011

ABSTRACT:
The present invention is directed to an iron, aluminum, chromium, carbon alloy and a method of producing the same, wherein the alloy has g good room temperature ductility, excellent high temperature oxidation resistance and ductility. The alloy includes about 10 to 70 at. % iron, about 10 to 45 at. % aluminum, about 1 to 70 at. % chromium and about 0.9 to 15 at. % carbon. The invention is also directed to a material comprising a body-centered-cubic solid solution of this alloy, and a method for strengthening this material by the precipitation of body-centered-cubic particles within the solid solution, wherein the particles have substantially the same lattice parameters as the underlying solid solution. The ease of processing and excellent mechanical properties exhibited by the alloy, especially at high temperatures, allows it to be used in high temperature structural applications, such as a turbocharger component.

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