Title:
DIFFUSION-RESISTANT HIGH-ENTROPY ALLOY COATING MATERIAL, HEAT RESISTANT COATING MATERIAL, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/062102
Kind Code:
A1
Abstract:
A diffusion-resistant high-entropy alloy coating material and a heat resistant coating material, comprising a substrate and a diffusion-resistant high-entropy alloy coating. The diffusion-resistant high-entropy alloy coating comprises the elements: Al, Co, Cr, Ni, and Mo. The heat resistant coating material is obtained by forming the aforementioned diffusion-resistant high-entropy alloy coating on the substrate, and then, using same as a base material, forming a heat resistant coating thereon. By utilizing a unique slow diffusion effect of the diffusion-resistant high-entropy alloy coating and good physical and chemical matching thereof with both the substrate and the heat resistant coating, it is possible to effectively inhibit mutual diffusion of alloy components and harmful phase precipitation at the contact surface between the substrate and the coating, and improve the high temperature oxidation resistance capability of the coating. The heat resistant coating material can be applied in the preparation of hot-end parts of aeronautical engines or gas turbines to improve the service life and working reliability of the parts.
Inventors:
WANG WEI (CN)
XU ZHONGZHAN (CN)
WANG LEI (CN)
HONG YUE (CN)
SHI QIAN (CN)
LIN SONGSHENG (CN)
GUO CHAOQIAN (CN)
TANG PENG (CN)
SU YIFAN (CN)
DAI MINGJIANG (CN)
WANG HONGLI (CN)
TANG CHUNMEI (CN)
XU ZHONGZHAN (CN)
WANG LEI (CN)
HONG YUE (CN)
SHI QIAN (CN)
LIN SONGSHENG (CN)
GUO CHAOQIAN (CN)
TANG PENG (CN)
SU YIFAN (CN)
DAI MINGJIANG (CN)
WANG HONGLI (CN)
TANG CHUNMEI (CN)
Application Number:
PCT/CN2020/127792
Publication Date:
March 31, 2022
Filing Date:
November 10, 2020
Export Citation:
Assignee:
INSTITUTE OF NEW MAT GUANGDONG ACADEMY OF SCIENCES (CN)
International Classes:
C22C30/00; C23C28/02; C23C14/16; C23C14/32; C23C14/35
Foreign References:
| CN110643955A | 2020-01-03 | |||
| CN101148726A | 2008-03-26 | |||
| CN103056352A | 2013-04-24 | |||
| CN103252495A | 2013-08-21 | |||
| JP2018145456A | 2018-09-20 | |||
| US20170314097A1 | 2017-11-02 |
Other References:
LIN, Y.C. ; CHO, Y.H.: "Elucidating the microstructural and tribological characteristics of NiCrAlCoCu and NiCrAlCoMo multicomponent alloy clad layers synthesized in situ", SURFACE AND COATINGS TECHNOLOGY, ELSEVIER, NL, vol. 203, no. 12, 15 March 2009 (2009-03-15), NL , pages 1694 - 1701, XP025941240, ISSN: 0257-8972, DOI: 10.1016/j.surfcoat.2009.01.004
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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