Title:
METAL MATERIAL, AND SURFACE TREATMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/125658
Kind Code:
A1
Abstract:
A metal material is provided with a metal material base (2) and a reforming layer formed on the surface of the metal material base (2), wherein the reforming layer has an average of three or more protrusions (3) in a 10 μm2 range, the protrusions protruding from the surface of the metal material base (2) and having an average diameter of 1 μm or less when viewed from a direction that is perpendicular to the surface of the metal material base (2). Preferably, the reforming layer is provided with an average of one or more of the following protrusions in a 10 μm2 range, that is, a protrusion provided with a base part protruding from the surface of the metal material base (2), and a tip part formed on the end of the base part, and having a constricted structure, in which the outer diameter of the base part is smaller than the outer diameter of the tip part, and an average diameter of 1 μm or less when viewed from a direction that is perpendicular to the surface of the metal material base (2). As a consequence, it is possible to provide a metal material exhibiting new features such as hydrophilic property and light-emitting property.
Inventors:
NAGOSHI MASAYASU (JP)
SATO KAORU (JP)
NORO HISATO (JP)
BABA KAZUHIKO (JP)
WATANABE SEIICHI (JP)
YOSHIDA SOUKI (JP)
SATO KAORU (JP)
NORO HISATO (JP)
BABA KAZUHIKO (JP)
WATANABE SEIICHI (JP)
YOSHIDA SOUKI (JP)
Application Number:
PCT/JP2013/054413
Publication Date:
August 29, 2013
Filing Date:
February 21, 2013
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C26/00; B23H1/00; C25D3/02; C25D5/02
Foreign References:
| JPH09241865A | 1997-09-16 | |||
| JPH06297252A | 1994-10-25 | |||
| JPS4218043B1 | ||||
| JP2004521186A | 2004-07-15 | |||
| JP2010287648A | 2010-12-24 | |||
| JP2008285754A | 2008-11-27 |
Other References:
See also references of EP 2818579A4
HIDEAKI TAKAHASHI; MASATOSHI SAKAIRI; TATSUYA KIKUCHI; HIMENDRA JHA, HYOMEN GIJUTSU, vol. 60, no. 3, 2009, pages 14
WATARU NATSU: "Application and Theory of Micro Electrochemical Machining", HYOMEN GIJUTSU, vol. 61, 2010, pages 294
HIDEAKI TAKAHASHI; MASATOSHI SAKAIRI; TATSUYA KIKUCHI; HIMENDRA JHA, HYOMEN GIJUTSU, vol. 60, no. 3, 2009, pages 14
WATARU NATSU: "Application and Theory of Micro Electrochemical Machining", HYOMEN GIJUTSU, vol. 61, 2010, pages 294
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims:
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