Dynamic compressive strength and mechanism of failure of Al-W fiber composite tubes with ordered mesostructure

International Journal of Impact Engineering(2017)

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摘要
•High-density Al-W fiber composite tubes with periodically ordered W fibers were processed by using Cold and Hot Isostatic Pressing, and subsequent heat treatment (HT).•The tubes were dynamically tested and samples after additional HT had higher microhardness of Al matrix and increased compressive strength.•Composites demonstrated strain rate sensitivity mostly due to W fibers.•The samples failure is due to the buckling and kinking of W fibers oriented in the axial direction, sample bulging and the subsequent fracture of W fibers in the hoop direction.
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关键词
Aluminum alloys,Composites,Tungsten fiber,Split Hopkinson pressure bar,Dynamic loading
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