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Patent Searching and Data


Title:
STEEL COMPONENT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2015/137388
Kind Code:
A1
Abstract:
In the present invention, heating and cooling processing in which the surface of a steel material machined to a desired shape and subjected to carbonitriding processing is heated by stimulation and then is cooled is repeated a desired number of times so that an ultrafine crystal layer is formed directly below the surface of the steel material and at least a prescribed number of cracks are formed below the formed ultrafine crystal layer. As a result of this configuration, viscosity can be produced by raising the toughness of the surface or directly below the surface and the growth of cracks can be suppressed.

Inventors:
MATSUMOTO KENJI (JP)
Application Number:
PCT/JP2015/057131
Publication Date:
September 17, 2015
Filing Date:
March 11, 2015
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
C21D7/04; C21D1/06; C21D7/06; C21D9/32; C23C8/32
Domestic Patent References:
WO2007102280A12007-09-13
Foreign References:
JP2009014167A2009-01-22
JPH11347944A1999-12-21
JP2004339575A2004-12-02
JP2007297651A2007-11-15
Attorney, Agent or Firm:
YOSHIDA YUTAKA (JP)
Yoshida 豊 (JP)
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