航空发动机和工业燃气轮机热喷涂热障涂层用金属黏结层:回顾与展望
Metallic bond coats for thermally-sprayed thermal barrier coatings applied to aero-engines and industrial gas turbines: review and prospect
查看参考文献38篇
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文摘
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超音速火焰喷涂制作的金属黏结层加料浆喷涂制作的柱状晶结构陶瓷隔热层被视作新一代航空发动机和燃气轮机用热喷涂热障涂层,其中采用的MCrAlY金属黏结层正朝着长寿命、低成本、适用于新燃料的方向发展。本文综述近年来航空发动机和燃气轮机热端部件热障涂层用MCrAlY金属黏结层研究进展,并对涂层的结构设计与成分设计进行探讨。 |
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其他语种文摘
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The MCrAlY bond coats used for thermally-sprayed thermal barrier coatings applied to aeroengines and industrial gas turbines are reached their temperature limits. The further development is aiming to extend service life, low production cost and compatibility with new fuels. The new MCrAlYs have to be oxidation resistant and spallation resistant, and able to prevent SRZ formation caused by the diffusion with superalloy substrate, and to avoid the damage of thermo-mechanical properties. This paper reviewed recent developments in this area, and proposed a composite structured low-β / near-γ' type MCrAlY with a very low ϕ value and CTE closed to Al_2O_3 to achieve the target. This approach may be cost effective, and more attractive to aeroengine and industrial gas turbine manufacturers, as well as coating developers and research institutions. Meanwhile, big data analysis will help to design new coating composition, speed up the development process and reduce R&D cost, lead to the findings of more durable thermal barrier coatings for aeroengine and industrial gas turbine applications. |
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来源
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航空材料学报
,2022,42(1):15-24 【核心库】
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DOI
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10.11868/j.issn.1005-5053.2021.000217
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关键词
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燃气轮机
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热障涂层
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金属黏结层
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长寿命
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低成本
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成分设计
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地址
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1.
昆明理工大学材料科学与工程学院, 昆明, 650093
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中国航发商用航空发动机有限责任公司研发中心材料工艺部, 上海, 200241
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上海电气燃气轮机有限公司燃气轮机研究所, 上海, 200240
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-5053 |
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学科
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一般工业技术 |
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文献收藏号
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CSCD:7182248
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