TITANIUM ALLOYS EXCELLENT IN HYDROGEN ABSORPTION-RESISTANCE

Title:

TITANIUM ALLOYS EXCELLENT IN HYDROGEN ABSORPTION-RESISTANCE

Document Type and Number:

WIPO Patent Application WO/2004/015151

Kind Code:

A1

Abstract:

A titanium alloy scarcely undergoing brittling caused by hydrogen even in case of being used under hydrogen-absorbing conditions. This alloy comprises a Ti-Al alloy composed of from 0.50 to 3.0% of Al with the balance of Ti together with unavoidable contaminants. A Ti-Al alloy material excellent in hydrogen absorption-resistance wherein an oxidized film of 1.0 to 100 nm in thickness is formed on a bulk made of a Ti-Al alloy satisfying the chemical composition as described above, and, further, a concentrated Al layer having an Al concentration of 0.8 to 25% higher by 0.3% or more than the bulk is optionally formed between the bulk and the oxidized film.

Inventors:

SAKASHITA SHINJI (JP)
YASHIKI TAKASHI (JP)
MATSUKADO KATSUHIRO (JP)
NAKAYAMA TAKENORI (JP)

Application Number:

PCT/JP2003/001213

Publication Date:

February 19, 2004

Filing Date:

February 06, 2003

Export Citation:

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Assignee:

KOBE STEEL LTD (JP)
SAKASHITA SHINJI (JP)
YASHIKI TAKASHI (JP)
MATSUKADO KATSUHIRO (JP)
NAKAYAMA TAKENORI (JP)

International Classes:

C23C8/10; C23C22/56; C22C14/00; C23C26/00; C23C28/00; (IPC1-7): C22C14/00; C23C22/56

Foreign References:

JPH0727884A	1995-01-31
JPH04143235A	1992-05-18
JPH06173083A	1994-06-21
EP1126139A2	2001-08-22

Other References: