Title:
拡散障壁用Re合金皮膜
Document Type and Number:
Japanese Patent JP3857690
Kind Code:
B2
Abstract:
Disclosed is a Re alloy coating for diffusion barrier, such as a high-temperature equipment member, which comprises an atomic composition of 30 % to less than 90 % Re; and an atomic composition of 5 % to less than 60 % X (wherein X is at least one selected from the group consisting of Cr, Mo and W), with the remainder except for inevitable impurities being at least one selected from the group consisting of Ni, Fe and Co. Even if the alloy coating for diffusion barrier includes a diffusion layer containing at least one of the group consisting of Al, Si and Cr, a desired alloy composition of the alloy coating for diffusion barrier can be assured by a surface coating process and diffused components from the substrate while substantially preventing the diffusion of the elements of the diffusion layer during a homogenizing heat treatment. The alloy coating for diffusion barrier may include a Re-containing-alloy stress relief layer inserted between the film and the substrate. The Re alloy coating can suppress the deterioration of the substrate and the coating layer due to the reaction therebetween to provide an extended life span of the equipment member.
More Like This:
| WO/1998/045498 | SUBSTRATE BODY WITH A PROTECTIVE COATING |
| JP2754127 | P-CONTAINING HIGH STRENGTH GALVANNEALED STEEL SHEET |
| JPH04128570 | [Title of the device] Piston rod |
Inventors:
Toshio Narita
Shigenari Hayashi
Takayuki Yoshioka
Hiroshi Hachiho
Shigenari Hayashi
Takayuki Yoshioka
Hiroshi Hachiho
Application Number:
JP2003540413A
Publication Date:
December 13, 2006
Filing Date:
September 13, 2002
Export Citation:
Assignee:
Japan Science and Technology Agency
Ebara Corporation
Ebara Corporation
International Classes:
C23C30/00; C23C28/00; C23C28/02
Domestic Patent References:
| JP10507230A |
Attorney, Agent or Firm:
Yoshiyuki Nishi