Current Research Status of Doping Modified–NiAl Bond Coat for Thermal Barrier Coating System

DONG Hui; WANG Heyu; ZHOU Panhu; DU Yongqi

doi:10.16080/j.issn1671-833x.2022.03.044

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Current Research Status of Doping Modified–NiAl Bond Coat for Thermal Barrier Coating System

更新时间：2025-07-30

- Current Research Status of Doping Modified–NiAl Bond Coat for Thermal Barrier Coating System
- Aeronautical Manufacturing Technology Vol. 65, Issue 3, (2022)
- 作者机构：
  
  西安石油大学西安市高性能油气田材料重点实验室,西安,710065
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.03.044
  CLC：
- Published：2022
- 稿件说明：
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董会，王鹤屿，周攀虎，杜永祺. 热障涂层NiAl黏结层掺杂改性研究现状[J]. 航空制造技术, 2022, 65(3): 44-50.

DONG Hui, WANG Heyu, ZHOU Panhu, DU Yongqi. Current Research Status of Doping Modified–NiAl Bond Coat for Thermal Barrier Coating System[J]. Aeronautical Manufacturing Technology, 2022, 65(3): 44-50.
董会，王鹤屿，周攀虎，杜永祺. 热障涂层NiAl黏结层掺杂改性研究现状[J]. 航空制造技术, 2022, 65(3): 44-50. DOI： 10.16080/j.issn1671-833x.2022.03.044.

DONG Hui, WANG Heyu, ZHOU Panhu, DU Yongqi. Current Research Status of Doping Modified–NiAl Bond Coat for Thermal Barrier Coating System[J]. Aeronautical Manufacturing Technology, 2022, 65(3): 44-50. DOI： 10.16080/j.issn1671-833x.2022.03.044.

摘要

目前，航空发动机和燃气轮机的使用温度均已超过 1000℃，传统黏结层材料 MCrAlY的性能逐渐无法满足需求。NiAl具有熔点高、密度低、成本低和抗氧化性能优异等特点，因此有很大的应用潜力。然而 NiAl 高温强度低，氧化层附着性较差，需要对其掺杂改性以提高 NiAl的高温性能，主要包括掺杂铂族元素（Pt、Ru、Pd 等）和活性元素（Hf、Zr、Dy 等）以及纳米晶颗粒（CeO

、Al

、ZrC 等）。简要概述了掺杂的不同作用，通过单独或共同掺杂，可以减缓TGO的生长，降低互扩散系数，增加氧化层黏附性，提高 NiAl 涂层的使用性能。

Abstract

At present

the operating temperatures of aero-engines and gas turbines have exceeded 1000℃

and the performance of traditional bond coat material MCrAlY has gradually been unable to meet the demand. NiAl intermetallic has high melting point

low density

low cost and excellent oxidation resistance

which offers its great potential in application. However

the high temperature strength of NiAl is low and the adhesion of its oxide scale is poor

so it is compulsory to modify NiAl to enhance its high-temperature performance by doping platinum group elements (Pt

etc.)

reactive elements (Hf

etc.) and nanocrystalline particles (CeO

ZrC

etc.). The different roles of these doping manners are briefly summarized. By doping alon

e or together

the growth rate of TGO can be slowed down

the mutual diffusion coefficient can be reduced

the adhesion of oxide scale can be increased

and the overall performance of NiAl coating can be improved.

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