Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings

doi:10.1016/j.jmst.2020.01.028

IMR OpenIR

	Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings
	Qiu, Xiang 1,2; Tariq, Naeem ul Haq 3; Qi, Lu 1,2; Tang, Jun-Rong 1,2; Cui, Xin-Yu 1; Du, Hao 1; Wang, Ji-Qiang 1; Xiong, Tian-Ying 1
通讯作者	Wang, Ji-Qiang(jqwang11s@imr.ac.cn) ; Xiong, Tian-Ying(tyxiong@imr.ac.cn)
	2020-05-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	44 页码:9-18
摘要	In this study, three kinds of A380/Al2O3 composite coatings were prepared by cold spray (CS) using spherical, irregular and spherical + irregular shaped Al2O3 particulates separately mixed in the original A380 alloy powders. The influence of Al2O3 particulates' morphology on the micro structural characteristics (i.e. retention of Al2O3 content in coatings, coating/matrix interfacial bonding, pore size distribution and morphology etc.) and wear performance of the coatings was investigated by scanning electron microscopy (SEM), X-ray computed tomography (XCT) and 3-D optical profilometry. Results indicated that the spherical Al2O3 shows obvious tamping effect during deposition process. As a result, the interface showed a wavy shape while the matrix and particulates were mechanical interlocked with much improved adhesion. In addition, the porosity of the coating was minimized and the pores exhibited curved spherical structure with reduced dimensions. The irregular Al2O3 particles predominantly displayed the embedding effect together with fragmentation of Al2O3 particulates. Consequently, poor coating/ matrix interfacial bonding, high porosity and the formation of angular-shaped pores were resulted in the coating. Dry sliding wear tests results revealed that the wear resistance of the coating is directly related with the retained content of Al2O3 in the coating. The coating containing irregular Al2O3 particulates displayed superior wear performance with its wear rate one seventh of that of the pure A380 alloy coating. The coating containing both kinds of Al2O3 particulates showed mixed characteristics of above two kinds of Al2O3 composite coatings. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Cold spray Al2O3 particulates X-ray computed tomography Wear test
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jmst.2020.01.028
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671205] ; National Natural Science Foundation of China[51801217]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000522863000002
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：37[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/321006/138113
专题	中国科学院金属研究所
通讯作者	Wang, Ji-Qiang; Xiong, Tian-Ying
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad, Pakistan
推荐引用方式 GB/T 7714	Qiu, Xiang,Tariq, Naeem ul Haq,Qi, Lu,et al. Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,44:9-18.
APA	Qiu, Xiang.,Tariq, Naeem ul Haq.,Qi, Lu.,Tang, Jun-Rong.,Cui, Xin-Yu.,...&Xiong, Tian-Ying.(2020).Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,44,9-18.
MLA	Qiu, Xiang,et al."Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 44(2020):9-18.