General Electric Company

Nancy Ann Sullivan

Michael James Weimer

Andrew Philip Woodfield

Larry W Plemmons

Thomas Froats Broderick

Shesh Krishna Srivatsa

Peter Wayte

Robert Gerard Baran

Glenn Charles Culbertson

Bernard Harold Lawless

Wesley Douglas Pridemore

Dennis G King

Thomas M Gately

A titanium-alloy article is produced by providing a workpiece of an alpha-beta titanium alloy having a beta-transus temperature, and thereafter mechanically working the workpiece at a mechanical-working temperature above the beta-transus temperature. The mechanically worked workpiece is solution heat treated at a solution-heat-treatment temperature of from about 175&#xb0; F. below the beta-transus temperature to about 25&#xb0; F. below the beta-transus temperature, quenched, overage heat treated at an overage-heat-treatment temperature of from about 400&#xb0; F. below the beta-transus temperature to about 275&#xb0; F. below the beta-transus temperature, and cooled from the overage-heat-treatment temperature.

Method for producing a beta-processed alpha-beta titanium-alloy article

Cooling of a workpiece is conducted at selected workpiece locations in accordance with predetermined heat flux, at the locations, required to result in a desired workpiece cooling rate for workpiece integrity, microstructure and mechanical properties. A cooling fluid is controlled to follow the workpiece surface according to preselected cooling fluid convective cooling parameters including, but not limited to, cooling fluid direction, mass flow rate, and velocity at the selected locations.

Method and apparatus for cooling a workpiece

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Williamsburg, OH, United States of America

Nancy Ann Sullivan