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Wear behavior of the raw and pre-smashed carbon nanotubes reinforced 6061Al composites fabricated by powder metallurgy
Li XiaoNan1,2; Liu ZhenYu1; Zan YuNing1; Xiao BoLu1; Ni DingRui1; Wang QuanZhao1; Wang Dong1; Ma ZongYi1
Corresponding AuthorLiu ZhenYu(zyliu@imr.ac.cn) ; Xiao BoLu(blxiao@imr.ac.cn)
2022-03-30
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
Pages11
AbstractThe raw and pre-smashed (PS) carbon nanotube (CNT) reinforced 6061Al composites (CNT/6061Al) with different CNT contents were respectively fabricated by powder metallurgy technology. It was found that reducing the CNT cluster size by pre-smashing processing could sharply reduce the friction coefficient, and significantly improve the density, hardness, and wear resistance of the CNT/6061Al composites. For the raw-CNT/6061Al composites, the wear rate increased approximately linear trend while the CNT content was over 1 wt.%. The plastic deformation, deep grooves, and serious delamination were presented on the wear surface. The wear process was gradually transformed from Al-copper base counterpart wear into Al-Al wear for the higher adhesion-binding energy between aluminum and copper base counterpart. While for the PS-CNT/6061Al composites, the wear rate gradually decreased as the CNT content increased from 0 to 2 wt.%. This was mainly because the generation of the thinner mechanically mixed layer (MML) and the PS-CNT prevented the direct contact between specimen and copper base counterpart, which effectively inhibited the adhesive wear. But excessive PS-CNT addition (similar to 3 wt.%) would weaken the bonding between CNT and 6061Al, and thus the wear resistance of the composite was reduced apparently.
Keywordwear carbon nanotube aluminum matrix composites clustering
Funding OrganizationNational Key R&D Program of China ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
DOI10.1007/s11431-020-1817-3
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFB0703104] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC015] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[51871214] ; National Natural Science Foundation of China[51871215] ; Youth Innovation Promotion Association CAS[2020197]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000777428200001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173054
Collection中国科学院金属研究所
Corresponding AuthorLiu ZhenYu; Xiao BoLu
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li XiaoNan,Liu ZhenYu,Zan YuNing,et al. Wear behavior of the raw and pre-smashed carbon nanotubes reinforced 6061Al composites fabricated by powder metallurgy[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2022:11.
APA Li XiaoNan.,Liu ZhenYu.,Zan YuNing.,Xiao BoLu.,Ni DingRui.,...&Ma ZongYi.(2022).Wear behavior of the raw and pre-smashed carbon nanotubes reinforced 6061Al composites fabricated by powder metallurgy.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,11.
MLA Li XiaoNan,et al."Wear behavior of the raw and pre-smashed carbon nanotubes reinforced 6061Al composites fabricated by powder metallurgy".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2022):11.
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