MMCs with controlled non-uniform distribution of submicrometre Al2O3 particles in 6061 aluminium alloy matrix

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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
刊名	MATERIALS SCIENCE AND TECHNOLOGY
	2000-07-01
卷号	16 期号:7-8 页码:908-912
ISSN号	0267-0836
通讯作者	Zhou, Z()
英文摘要	By 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.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	INST MATERIALS
WOS记录号	WOS:000089014400034
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/111000]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhou, Z
作者单位	1.Brunel Univ, Dept Mat Engn, Uxbridge UB8 3PH, Middx, England 2.Chinese Acad Sci, Met Res Inst, Lab Atom Imaging Solids, Shenyang 110015, Peoples R China
推荐引用方式 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.