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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27115


    Title: ELEVATED-TEMPERATURE, LOW-CYCLE FATIGUE BEHAVIOR OF AN AL2O3P/6061-T6 ALUMINUM-MATRIX COMPOSITE
    Authors: PERNG,CC;HWANG,JR;DOONG,JL
    Contributors: 機械工程研究所
    Keywords: MECHANICAL-PROPERTIES;PARTICULATE COMPOSITE;FIBER;POROSITY
    Date: 1993
    Issue Date: 2010-06-29 18:08:07 (UTC+8)
    Publisher: 中央大學
    Abstract: The metal-matrix composite materials (MMC) consist of 10, 15 and 20 vol 9% of alumina particles (Al2O3p) in a 6061-T6 aluminium alloy matrix. Specimens were taken from hot-extruded rods and low-cycle fatigue (LCF) tests were carried out at various temperatures and strain amplitudes. The fracture surfaces were studied with a scanning electron microscope in order to understand the fracture mechanism of these composite materials under LCF conditions. From the results, it can be concluded that there is a little cyclic softening at lower strain amplitudes, irrespective of the test temperature, except for the 20 vol % MMC at 300-degrees-C. However, at high strain amplitude, the MMCs show cyclic hardening. The LCF behaviour of Al2O3p/6061-T6 is poorer than that of the unreinforced 6061-T6 Al alloy, especially in the short-life, high-amplitude region.
    Relation: COMPOSITES SCIENCE AND TECHNOLOGY
    Appears in Collections:[機械工程研究所] 期刊論文

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