Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate

doi:10.1016/j.surfcoat.2019.04.082

IMR OpenIR

	Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate
	Zhang, Zhichao ; Liu, Fuchun 1; Han, En-Hou ; Xu, Long ; Uzoma, Paul C.
通讯作者	Liu, Fuchun(fcliu@imr.ac.cn)
	2019-07-25
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	370 页码:53-68
摘要	Pure Al 2024 coating and Al 2024-Al2O3 composite coatings were deposited on AA 2024-T3 alloy substrates using low-pressure cold gas spray (LPCGS). The content of Al2O3 in the feedstock was 20 wt%, 40 wt% and 60 wt %, respectively. The porosity, surface roughness, adhesion and surface residual stress of the coatings were analyzed. Electrochemical tests were carried out in neutral 3.5 wt% NaCl solution to evaluate the effects of Al2O3 on the corrosion behavior of the coatings. The results showed that the Al 2024-20 wt% Al2O3 composite coating possessed the lowest porosity (0.55%), relatively higher adhesion strength (50.68 MPa) and surface residual compressive stress (48.3 MPa) among the cold sprayed coatings. The results of corrosion tests revealed that the cold sprayed coatings provided sacrificial anode protection for the AA 2024-T3 substrate and that Al 2024-20 wt% Al2O3 composite coating exhibited the best corrosion resistance.
关键词	Aluminum alloy Low-pressure cold spray Al 2024-Al2O3 coating Aircraft repairing EIS
资助者	Guangzhou Industry-University-Research Collaborative Innovation Alliance Special Project
DOI	10.1016/j.surfcoat.2019.04.082
收录类别	SCI
语种	英语
资助项目	Guangzhou Industry-University-Research Collaborative Innovation Alliance Special Project[201604046014]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000471083100007
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：64[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/134135
专题	中国科学院金属研究所
通讯作者	Liu, Fuchun
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhichao,Liu, Fuchun,Han, En-Hou,et al. Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate[J]. SURFACE & COATINGS TECHNOLOGY,2019,370:53-68.
APA	Zhang, Zhichao,Liu, Fuchun,Han, En-Hou,Xu, Long,&Uzoma, Paul C..(2019).Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate.SURFACE & COATINGS TECHNOLOGY,370,53-68.
MLA	Zhang, Zhichao,et al."Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate".SURFACE & COATINGS TECHNOLOGY 370(2019):53-68.