Accession Number : ADD000204

Title :   Thermomechanical Method of Forming High-Strength Beta-Titanium Alloys.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rosales,Louis A ; Sommer,Alfred W ; Ono,Kanji

Report Date : 26 Feb 1974

Pagination or Media Count : 9

Abstract : The patent concerns beta-titanium alloys containing a relatively large fraction of a beta-phase stabilizer. The alloys are thermomechanically treated to provide increased strength levels of greater than 220 k.s.i. with only a minimum loss of ductility. The treatments involve heating the stock to a point near its beta-transus; rapid cooling, cold rolling and aging, the last step including either a single final aging at a temperature in the alpha-forming temperature range or a multi-step aging process which includes pre-aging in the omega-forming range prior to the final aging.

Descriptors :   *Titanium alloys, *Thermomechanics, *Patents, Phase transformations, Aging(Materials), Strength(Mechanics)

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE