TITANIUM LESS SUSCEPTIBLE TO DISCOLORATION IN THE ATMOSPHERE AND METHOD FOR PRODUCING SAME

Title:

TITANIUM LESS SUSCEPTIBLE TO DISCOLORATION IN THE ATMOSPHERE AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2001/062999

Kind Code:

A1

Abstract:

A titanium less susceptible to discoloration in the atmosphere, characterized in that an average carbon concentration in the range from the surface to a depth of 100 nm is 14 at% or less and it has, on the surface thereof, a oxidized film having a thickness of 12 to 40 nm; and a titanium less susceptible to discoloration in the atmosphere, characterized in that the X-ray diffraction pattern of the surface thereof show a ratio (X1/X2) of an intensity (X1) of a (200) peak of TiC to an intensity (X2) of a (110) peak of titanium of 0.18 or less and it has, on the surface thereof, a oxidized film having a thickness of 12 to 40 nm.

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Inventors:

KANEKO MICHIO (JP)
HAYASHI TERUHIKO (JP)
TAKAHASHI KAZUHIRO (JP)
TOKUNO KIYONORI (JP)
TAMENARI JYUNICHI (JP)
KIMURA KINICHI (JP)
SHIMIZU HIROSHI (JP)
MARUYAMA SHOICHI (JP)

Application Number:

PCT/JP2001/001385

Publication Date:

August 30, 2001

Filing Date:

February 23, 2001

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
KANEKO MICHIO (JP)
HAYASHI TERUHIKO (JP)
TAKAHASHI KAZUHIRO (JP)
TOKUNO KIYONORI (JP)
TAMENARI JYUNICHI (JP)
KIMURA KINICHI (JP)
SHIMIZU HIROSHI (JP)
MARUYAMA SHOICHI (JP)

International Classes:

C22F1/00; C22F1/02; C22F1/18; C23C8/08; G01N23/207; C23C8/16; C23C30/00; C25D11/26; C25F1/08; G01N23/227; (IPC1-7): C22F1/18; C25D11/26; B21B45/00

Foreign References:

JP2000001729A	2000-01-07
JPH01234551A	1989-09-19
JPS6286197A	1987-04-20
JPH06173083A	1994-06-21

Other References: