Accession Number:

ADD013694

Title:

Elevated Temperature Aluminum-Titanium Alloy.

Descriptive Note:

Patent Application, Filed 29 Jan 88,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1988-01-29

Pagination or Media Count:

14.0

Abstract:

This abstract discloses an aluminum-titanium alloy and a process of making it. The alloy consist essentially of aluminum, 4-6 wt. titanium, 1-2 wt. carbon, and 0.1-0.2 WT. oxygen. The alloy is an aluminum matrix supersaturated with titanium, and having throughout a fine, homogeneous dispersion of Al3Ti particles. It is fine grained and has grain boundary dispersoids of carbides and oxides, predominantly of aluminum. An aluminum-titanium melt is rapidly solidified and then mechanically alloyed in the presence of a carbon-bearing agent. The resulting powder is degassed and hot consolidated to form articles which exhibit high strength, ductility, and creep resistance at temperatures greater than 200 C.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE