Jerry R Fields

US Patent:

7879286, Feb 1, 2011

Filed:

Jun 7, 2006

Appl. No.:

11/448160

Inventors:

Daniel B. Miracle - Bellbrook OH, US
Radhakrishna B. Bhat - Niskayuna NY, US
Dale J. McEldowney - Anna OH, US
Jerry L. Fields - Woodstock VA, US
William M. Hanusiak - Windermere FL, US
Rob L. Grabow - Clarksburg WV, US
C. Fred Yolton - Coraopolis PA, US
Eric S. Bono - McDonald PA, US

International Classification:

C22F 1/18

US Classification:

419 12, 148513, 148671

Abstract:

A method of producing a high strength, high stiffness and high ductility titanium alloy, comprising combining the titanium alloy with boron so that the boron concentration in the boron-modified titanium alloy does not exceed the eutectic limit. The carbon concentration of the boron-modified titanium alloy is maintained below a predetermined limit to avoid embrittlement. The boron-modified alloy is heated to a temperature above the beta transus temperature to eliminate any supersaturated excess boron. The boron-modified titanium alloy is deformed at a speed slow enough to prevent microstructural damage and reduced ductility.