Title:
METHOD FOR DIFFUSION COATING HEAT-RESISTANT METAL MEMBER WITH CREEP REINFORCEMENT MATERIAL, AND CREEP-STRENGTH-ENHANCED HEAT-RESISTANT METAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2015/045038
Kind Code:
A1
Abstract:
A creep reinforcement material including at least one element selected from B, W, Cr, Mo, Nb, V, Hf, Zr, Ti, Cu, and Co is applied to or thermally sprayed on a surface of a heat-resistant metal member produced using a heat-resistant metal, a section having the creep reinforcement material applied thereto or thermally sprayed thereon is covered by a heat-resistant cover member and secured such that the heat-resistant cover member is in contact with said section, and the heat-resistance metal member covered by the heat-resistant cover member is heated to a temperature of at least 1000˚C. As a result, a compressive force acts upon the heat-resistant metal member which thermally expands in a direction towards an outer periphery, the thermal expansion of the heat-resistant metal member in the direction towards the outer periphery is restrained, and efficient diffusion and permeation, into the heat-resistant metal member, of the creep reinforcement material on the surface of the heat-resistant metal member, is rendered possible.
Inventors:
NISHIDA HIDETAKA (JP)
Application Number:
PCT/JP2013/075927
Publication Date:
April 02, 2015
Filing Date:
September 25, 2013
Export Citation:
Assignee:
CHUGOKU ELECTRIC POWER (JP)
International Classes:
C23C4/06; C21D1/34; C21D9/08; C21D9/50; C23C4/18; C23C26/00
Foreign References:
| JPH04176856A | 1992-06-24 | |||
| JPH1137864A | 1999-02-12 | |||
| JPH08176786A | 1996-07-09 | |||
| JPH02277760A | 1990-11-14 | |||
| JP2002257163A | 2002-09-11 | |||
| JPH042761A | 1992-01-07 | |||
| JP3793966B2 | 2006-07-05 |
Other References:
See also references of EP 3050997A4
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
All international patent business corporation (JP)
All international patent business corporation (JP)
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