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Effect of Transition Elements on the Thermal Stability of Glassy Alloys 82Al–16Fe–2TM (TM: Ti Ni Cu) Prepared by Mechanical Alloying

机译:通过机械合金化制备的过渡元件对玻璃合金82Al-16Fe-2Tm(Tm:TiNiCu)的热稳定性的影响

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摘要

In the present study, the thermal stability and crystallization behavior of mechanical alloyed metallic glassy Al82Fe16Ti2, Al82Fe16Ni2, and Al82Fe16Cu2 were investigated. The microstructure of the milled powders was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The results showed remarkable distinction in thermal stability of the alloys by varying only two atomic percentages of transition elements. Among them, Al82Fe16Ti2 alloy shows the highest thermal stability compared to the others. In the crystallization process, exothermal peaks corresponding to precipitation of fcc-Al and intermetallic phases from amorphous matrix were observed.
机译:在本研究中,研究了机械合金金属玻璃Al82Fe16Ti2,Al82Fe16Ni2和Al82F22F2的热稳定性和结晶行为。通过扫描电子显微镜(SEM),X射线衍射(XRD)和差示扫描量热法(DSC),表征了研磨粉末的微观结构。结果表明,通过仅改变两个原子百分比的过渡元素来显着区分合金的热稳定性。其中,与其他相比,Al82Fe16Ti2合金显示出最高的热稳定性。在结晶过程中,观察到与来自非晶基质的FCC-A1和金属间相沉淀对应的放热峰。

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