dc.contributor.author | Liu, Xiaoqing | |
dc.contributor.author | Li, Caiju | |
dc.contributor.author | Eckert, Jürgen | |
dc.contributor.author | Konda Gokuldoss, Prashanth | |
dc.contributor.author | Renk, Oliver | |
dc.contributor.author | Teng, Long | |
dc.contributor.author | Liu, Yichun | |
dc.contributor.author | Bao, Rui | |
dc.contributor.author | Tao, Jingmei | |
dc.contributor.author | Tao, Shen | |
dc.contributor.author | Yi, Jianhong | |
dc.date.accessioned | 2017-11-22T16:26:17Z | |
dc.date.available | 2017-11-22T16:26:17Z | |
dc.date.created | 2017-10-11T13:19:44Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Materials Characterization. 2017, 133 122-132. | nb_NO |
dc.identifier.issn | 1044-5803 | |
dc.identifier.uri | http://hdl.handle.net/11250/2467651 | |
dc.description.abstract | Carbon nanotubes reinforced pure aluminum (CNT/Al) composites were fabricated by combined ball milling and powder metallurgy (PM) techniques. The distribution of CNTs, the evolution of the average Al grain size of the powder mixtures and as-prepared composite bulks were investigated, and the mechanical properties of the composites were also tested. With increasing ball milling time, the entangled CNTs were broken, gradually achieving a uniform dispersion within the Al matrix. The microstructure became denser and the Al grains in the powder mixture and extruded composites got significantly refined. Some small-sized Al4C3 needles along the Al grain boundaries were observed using transmission electron microscopy (TEM). The in-situ formed Al4C3 rods have an orientation relation with the Al matrix as Al4C3 [110]//Al [1¯12], which strongly improved the Al-CNT interface bonding. The yield and the ultimate tensile strength of the composites significantly increased, when the ball milling time increased from 2 to 12 h, finally reaching about 210 ± 4.2 MPa and 253 ± 3.7 MPa, respectively, for the composite milled for 12 h. The enhancement of mechanical properties mainly stems from the uniform distribution of CNTs, the grain refinement of the Al matrix and the in-situ formed Al4C3. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.title | Microstructure evolution and mechanical properties of carbon nanotubes reinforced Al matrix composites | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 122-132 | nb_NO |
dc.source.volume | 133 | nb_NO |
dc.source.journal | Materials Characterization | nb_NO |
dc.identifier.doi | 10.1016/j.matchar.2017.09.036 | |
dc.identifier.cristin | 1503795 | |
dc.description.localcode | This article will not be available due to copyright restrictions (c) 2017 by Elsevier | nb_NO |
cristin.unitcode | 194,64,94,0 | |
cristin.unitname | Institutt for vareproduksjon og byggteknikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |