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Title:
SURFACE REINFORCED STEEL WITH HIGH CORROSION-RESISTANT FUNCTION AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2008088507
Kind Code:
A
Abstract:

To provide a surface reinforced steel which has a self-recovery surface layer with such sufficient hardness and thickness that a practical compressive residual stress can be imparted to a steel material by shot peening, and has a high corrosion-resistant function, and to provide a manufacturing method therefor.

The surface reinforced steel with the high corrosion-resistant function is a corrosion-resistant steel material having the surface layer 2 on the surface of a base metal 1, which has a higher Al concentration than the base metal 1, and having the surface imparted with the compressive residual stress.


Inventors:
TAKAHASHI FUMIO
ONO YOSHIKI
Application Number:
JP2006271132A
Publication Date:
April 17, 2008
Filing Date:
October 02, 2006
Export Citation:
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Assignee:
NHK SPRING CO LTD
International Classes:
C23C10/28; B24C1/10
Domestic Patent References:
JPH04128358A1992-04-28
JPS59110727A1984-06-26
JPH0586455A1993-04-06
JPH05287440A1993-11-02
JPH06262247A1994-09-20
JP2000282217A2000-10-10
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto