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نویسندگان مقالات پربازدید :
مواد و طراحی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • structural investigations of mechanical properties of al based rapidly solidified alloys

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 428
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this study, al based al–3 wt.%fe, al–3 wt.%cu and al–3 wt.%ni alloys were prepared by conventional casting. they were further processed using the melt-spinning technique and characterized by the x-ray diffraction (xrd), scanning electron microscopy (sem) together with energy dispersive spectroscopy (eds), transmission electron microscope (tem), differential scanning calorimetry (dsc) and the vickers microhardness tester. the rapidly solidified (rs) binary alloys were composed of supersaturated α–al solid solution and finely dispersed intermetallic phases. experimental results showed that the mechanical properties of rs alloys were enhanced, which can be attributed to significant changes in the microstructure. rs samples were measured using a microhardness test device. the dependence of microhardness hv on the solidification rate (v) was analysed. these results showed that with the increasing values of v, the values of hv increased. the enthalpies of fusion for the same alloys were determined by dsc.

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