Accession Number:

ADD009761

Title:

TiNi Base Alloy Shape Memory Enhancement through Thermal and Mechanical Processing.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1981-12-08

Pagination or Media Count:

6.0

Abstract:

A process for improving the shape change memory properties of a titanium-nickel base alloy by 1 heat treating the alloy to convert the TiNi phase to CsCl B2 type crystal structure, 2 cold working the alloy to increase the micro-twining, and finally 3 thermal cycling the alloy through the transition temperature range TTR while a load is applied in order to improve the orientation of the micro-twins.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE