Tailoring the thermal insulation and mechanical properties of Fe-based amorphous composite coating by YSZ addition

doi:10.1016/j.surfcoat.2025.131857

IMR OpenIR

	Tailoring the thermal insulation and mechanical properties of Fe-based amorphous composite coating by YSZ addition
	Xu, Fengfeng 1; Yao, Haihua 2; Wang, Xiangzhao 1; Li, Yanze 1; Yang, Yange 3; Zhao, Yu 4; Tan, Zhen 1; Guo, Xingye 1; He, Dingyong 1; Zhou, Zheng 1
通讯作者	Yao, Haihua(yaohaihua@bjut.edu.cn) ; Zhou, Zheng(zhouzhengbjut@bjut.edu.cn)
	2025-02-15
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	498 页码:11
摘要	Fe-based amorphous coating attracted great interest in a novel thermal barrier application for the design of advanced vehicle engines, especially when modified by ceramic addition. In this work, we focused on the ceramic content of a previously developed FeCrNbBSi/YSZ composite coating to tailor the thermal insulation and mechanical properties. The composite coatings synthesized by atmospheric plasma spraying (APS) comprise of well-formed amorphous matrix and dispersed YSZ splats. A nanoscale and amorphous interfacial layer forms between the metallic and ceramic splats due to the separate melt and rapid solidification of sprayed particles. Increasing YSZ additions significantly improve the thermal insulation ability of the composite coatings, granting the FN-30Y (FeCrNbBSi-30%YSZ) coating an extremely low thermal conductivity of 2.72 W/(m center dot K) at 600 degrees C, whose underlining mechanism is revealed as the suppression of electron thermal conductivity and the contribution of interfacial thermal resistance. Benefited from the formation of nanoscale interfacial layer to alleviate interfacial flaws, the moderate YSZ additions only induce a limited sacrifice of the fracture toughness, rendering the FN-20Y (FeCrNbBSi-20%YSZ) coating to maintain a high value of 3.40 MPa center dot m1/2, but excessive additions dramatically hamper the mechanical property of composite coating. The present results emphasize the importance of establishing balanced properties of Fe-based amorphous composite coating for thermal barrier application and provide an inspiration for future works aiming to tailor the performance of extensive metal-matrix composite coatings.
关键词	Fe-based amorphous coating Ceramic addition Interfacial layer Thermal conductivity Fracture toughness
资助者	National Natural Science Foundation of China
DOI	10.1016/j.surfcoat.2025.131857
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52371043] ; National Natural Science Foundation of China[51771005] ; National Natural Science Foundation of China[52171060] ; National Natural Science Foundation of China[52001025]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:001420130700001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179901
专题	中国科学院金属研究所
通讯作者	Yao, Haihua; Zhou, Zheng
作者单位	1.Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China 2.Beijing Univ Technol, Sch Phys & Optoelect Engn, Beijing 100124, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Aecc Hunan Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China
推荐引用方式 GB/T 7714	Xu, Fengfeng,Yao, Haihua,Wang, Xiangzhao,et al. Tailoring the thermal insulation and mechanical properties of Fe-based amorphous composite coating by YSZ addition[J]. SURFACE & COATINGS TECHNOLOGY,2025,498:11.
APA	Xu, Fengfeng.,Yao, Haihua.,Wang, Xiangzhao.,Li, Yanze.,Yang, Yange.,...&Zhou, Zheng.(2025).Tailoring the thermal insulation and mechanical properties of Fe-based amorphous composite coating by YSZ addition.SURFACE & COATINGS TECHNOLOGY,498,11.
MLA	Xu, Fengfeng,et al."Tailoring the thermal insulation and mechanical properties of Fe-based amorphous composite coating by YSZ addition".SURFACE & COATINGS TECHNOLOGY 498(2025):11.