IMR OpenIR
Influence of particulate morphology on microstructure and tribological properties of cold sprayed A380/Al2O3 composite coatings
Qiu, Xiang1,2; Tariq, Naeem ul Haq3; Qi, Lu1,2; Tang, Jun-Rong1,2; Cui, Xin-Yu1; Du, Hao1; Wang, Ji-Qiang1; Xiong, Tian-Ying1
Corresponding AuthorWang, Ji-Qiang(jqwang11s@imr.ac.cn) ; Xiong, Tian-Ying(tyxiong@imr.ac.cn)
2020-05-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume44Pages:9-18
AbstractIn 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.
KeywordCold spray Al2O3 particulates X-ray computed tomography Wear test
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.jmst.2020.01.028
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51671205] ; National Natural Science Foundation of China[51801217]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000522863000002
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138113
Collection中国科学院金属研究所
Corresponding AuthorWang, Ji-Qiang; Xiong, Tian-Ying
Affiliation1.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
Recommended Citation
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.
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