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MMCs with controlled non-uniform distribution of submicrometre Al2O3 particles in 6061 aluminium alloy matrix
Zhou, Z; Peng, HX; Fan, Z; Li, DX
Corresponding AuthorZhou, Z()
2000-07-01
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume16Issue:7-8Pages:908-912
AbstractBy employing spherical agglomerate of submicrometre Al2O3 particles, a novel composite with controlled nonuniform reinforcement distribution was produced by the squeeze casting technique. The resulting composite has a microstructure in which composite spheres, consisting of Al reinforced by small Al2O3 particles, are uniformly distributed in a particle free Al matrix. The response of mechanical properties to the controlled non-uniform distribution of the reinforcement was investigated and the fracture mechanism was discussed in order to understand experimentally the influence of particle clustering on tbe deformation characteristics. It is demonstrated that a composite with such a controlled microstructure exhibits significant increase in ultimate tensile strength (UTS), elastic modulus, and also a slight increase in ductility compared to composite with a homogeneous microstructure at a given volume fraction, It is proposed that the composite spheres act as units of reinforcement when subjected to deformation and contribute positively to the modulus, UTS, and hardness, The higher ductility is attributed to the extensive ductile deformation of the AJ matrix. In addition, the highly restrained deformation observed in the interagglomerate region can also be beneficial to the high strength. MST/4573.
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000089014400034
PublisherINST MATERIALS
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/111001
Collection中国科学院金属研究所
Corresponding AuthorZhou, Z
Affiliation1.Chinese Acad Sci, Met Res Inst, Lab Atom Imaging Solids, Shenyang 110015, Peoples R China
2.Brunel Univ, Dept Mat Engn, Uxbridge UB8 3PH, Middx, England
Recommended Citation
GB/T 7714
Zhou, Z,Peng, HX,Fan, Z,et al. MMCs with controlled non-uniform distribution of submicrometre Al2O3 particles in 6061 aluminium alloy matrix[J]. MATERIALS SCIENCE AND TECHNOLOGY,2000,16(7-8):908-912.
APA Zhou, Z,Peng, HX,Fan, Z,&Li, DX.(2000).MMCs with controlled non-uniform distribution of submicrometre Al2O3 particles in 6061 aluminium alloy matrix.MATERIALS SCIENCE AND TECHNOLOGY,16(7-8),908-912.
MLA Zhou, Z,et al."MMCs with controlled non-uniform distribution of submicrometre Al2O3 particles in 6061 aluminium alloy matrix".MATERIALS SCIENCE AND TECHNOLOGY 16.7-8(2000):908-912.
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