Invention Patent
- Patent Title: THERMOMECHANICAL PROCESSING OF ALPHA-BETA TITANIUM ALLOYS
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Application No.: SG11201506118TApplication Date: 2014-02-28
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Publication No.: SG11201506118TAPublication Date: 2015-10-29
- Inventor: THOMAS JEAN-PHILIPPE A , MINISANDRAM RAMESH S , FORBES JONES ROBIN M , MANTIONE JOHN V , BRYAN DAVID J
- Applicant: ATI PROPERTIES INC
- Assignee: ATI PROPERTIES INC
- Current Assignee: ATI PROPERTIES INC
- Priority: US201313844196 2013-03-15
- Main IPC: C22C14/00
- IPC: C22C14/00 ; C22F1/18
Abstract:
One embodiment of a method of refining alpha-phase grain size in an alpha-beta titanium alloy comprises working an alpha-beta titanium alloy at a first working temperature within a first temperature range in the alpha-beta phase field of the alpha-beta titanium alloy. The alloy is slow cooled from the first working temperature. On completion of working at and slow cooling from the first working temperature, the alloy comprises a primary globularized alpha-phase particle microstructure. The alloy is worked at a second working temperature within a second temperature range in the alpha-beta phase field. The second working temperature is lower than the first working temperature. The is worked at a third working temperature in a third temperature range in the alpha-beta phase field. The third working temperature is lower than the second working temperature. After working at the third working temperature, the titanium alloy comprises a desired refined alpha-phase grain size.
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