Novel candidate of metal-based thermal barrier coatings: High-entropy alloy
文献类型：期刊论文
| 作者 | Wang, Xiangzhao2; Yao, Haihua2; Yuan, Li2; Chen, Lijia3; Xu, Fengfeng2; Tan, Zhen2; He, Dingyong2; Yang, Yange4; Liu, Yanbo1; Zhou, Zheng2 |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 474页码:11 |
| 关键词 | High-entropy alloy Thermal barrier coating Microstructure Thermal conductivity |
| ISSN号 | 0257-8972 |
| DOI | 10.1016/j.surfcoat.2023.130087 |
| 通讯作者 | Chen, Lijia(lj.chen@giim.ac.can) ; Zhou, Zheng(zhouzhengbjut@bjut.edu.cn) |
| 英文摘要 | To obtain compatible properties of low thermal conductivity and high thermal stability, Al0.6CoCrFeNiTi highentropy alloy was designed as a novel candidate of metal-based thermal barrier coatings (MBTBCs). The corresponding high-entropy alloy coatings were fabricated by both high-velocity oxygen-fuel spraying (HVOF) and atmospheric plasma spraying (APS), and then the dependence of thermal insulation properties on microstructure was investigated. The both coatings exhibit a simple body-centered cubic (BCC) structure, but present obvious difference in microstructure and defect characters which relates to the evolution of in-flight particles. Benefit from the extremely low thermal conductivity, the APS-deposited coating can increase 13.24 degrees C of the surface temperature of piston crown and yield a temperature reduction of 19.00 degrees C along the thickness direction, which mean a positivity on enhancing the power efficiency of vehicle engines without sacrificing the strength of aluminum alloy components. In virtue of a decoupling method, the crucial effect of microstructure on thermal conductivity is disclosed, thus interpreting the excellent thermal insulation property of APS-deposited coating dominated by grain refinement and disordered BCC structure. The present results demonstrate a great potential of high-entropy alloy coatings as thermal barrier application and provide an inspiration for future works aiming to design these coatings to meet specific engineering needs. |
| 资助项目 | National Natural Science Foundation of China[52171060] ; National Natural Science Foundation of China[52001025] ; National Natural Science Foundation of China[52371043] ; National Natural Science Foundation of China[51771005] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001101955200001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177382]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, Lijia; Zhou, Zheng |
| 作者单位 | 1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China 3.Guangdong Acad Sci, Inst Intelligent Mfg, Guangdong Key Lab Modern Control Technol, Guangzhou 510000, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiangzhao,Yao, Haihua,Yuan, Li,et al. Novel candidate of metal-based thermal barrier coatings: High-entropy alloy[J]. SURFACE & COATINGS TECHNOLOGY,2023,474:11. |
| APA | Wang, Xiangzhao.,Yao, Haihua.,Yuan, Li.,Chen, Lijia.,Xu, Fengfeng.,...&Zhou, Zheng.(2023).Novel candidate of metal-based thermal barrier coatings: High-entropy alloy.SURFACE & COATINGS TECHNOLOGY,474,11. |
| MLA | Wang, Xiangzhao,et al."Novel candidate of metal-based thermal barrier coatings: High-entropy alloy".SURFACE & COATINGS TECHNOLOGY 474(2023):11. |
入库方式： OAI收割
来源：金属研究所
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