Dongjian J Li

US Patent:

56266910, May 6, 1997

Filed:

Sep 11, 1995

Appl. No.:

8/526096

Inventors:

Dongjian Li - Charlottesville VA
Joseph Poon - Charlottesville VA
Gary J. Shiflet - Charlottesville VA

Assignee:

The University of Virginia Patent Foundation - Charlottesville VA

International Classification:

C22C 1400

US Classification:

148421

Abstract:

Bulk nanocrystalline Ti-based alloys were produced by conventional cooling from the corresponding liquid or high temperature solid phase followed by annealing at an appropriate temperature for a certain amount of time. The titanium-based alloys have a composition represented by the following formula, Ti. sub. a Cr. sub. b Cu. sub. c M. sub. d wherein M is at least one metal element selected from the group consisting of Mn, Mo, Fe. a, b, c, and d are atomic percentages falling within the following ranges: 60

US Patent:

20170306467, Oct 26, 2017

Filed:

Apr 24, 2017

Appl. No.:

15/494844

Inventors:

- Pittsburgh PA, US
Dongjian Li - Canfield OH, US

International Classification:

C22F 1/18
B21C 23/32
B21B 3/00
B21C 23/00
C22C 14/00
B21C 29/00

Abstract:

The present disclosure relates to methods of finishing extruded titanium alloy workpieces by generating an extruded near net shape workpiece, cooling the extruded near net shape workpiece to a cooled temperature below the beta transus temperature, and then rolling the extruded near net shape workpiece one or more times at a rolling temperature to yield a final shape workpiece with desired properties.