Silicon carbide whisker reinforced aluminium composites–fabrication and properties
作者:
OhariK.,
WatanabeH.,
TakeuchiY.,
期刊:
Materials Science and Technology
(Taylor Available online 1987)
卷期:
Volume 3,
issue 1
页码: 57-60
ISSN:0267-0836
年代: 1987
DOI:10.1179/mst.1987.3.1.57
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractA fabrication process for SiC whisker reinforced aluminium composites is being developed. Theftrst step involves preforming the SiC whisker and squeeze-infiltrating the molten metal into the preform. Secondary fabrication can involve a conventional hot metal working practice such as extrusion. Microscopic observations indicate that the distribution of whiskers is very homogeneous. In an aluminium alloy (AA 6061) matrix composite containing 17 vol.-% SiC whiskers, the Young's modulus is>100 GPa and the tensile strength increases by ~ 50–70% above that of the matrix to 460 and 529 MN m−2in the cast and extruded products, respectively. The strength at elevated temperature and the wear resistance are also improved. These enhanced properties make the composite potentially suitable for a number of automotive applications.MST/574
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