Thermomechanical processing of alpha-beta titanium alloys

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United States of America Patent

PATENT NO 9777361
APP PUB NO 20140261922A1
SERIAL NO

13844196

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Abstract

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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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Patent OwnerAddress
ATI PROPERTIES INC1600 N E OLD SALEM ROAD ALBANY OR 97321

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bryan, David J Indian Trail, US 22 437
Forbes, Jones Robin M Charlotte, US 59 1105
Mantione, John V Indian Trail, US 19 326
Minisandram, Ramesh S Charlotte, US 33 442
Thomas, Jean-Phillippe A Charlotte, US 3 62

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