Titanium alloy member and production method therefor

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United States of America Patent

PATENT NO 9920399
SERIAL NO

14123620

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Abstract

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A titanium alloy member with high strength and high proof stress not only in the surface but also inside, using a general and inexpensive α-β type titanium alloy, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, and hot plastic forming the sintered titanium alloy member.

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Patent Owner(s)

Patent OwnerAddress
NHK SPRING CO LTD3-10 FUKUURA KANAZAWA-KU YOKOHAMA-SHI KANAGAWA 236-0004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Araoka, Yuji Yokohama, JP 7 16
Ono, Yoshiki Yokohama, JP 56 358
Shiraishi, Tohru Yokohama, JP 14 57

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