Consolidation of the Cu46Zr42Al7Y5 amorphous ribbons and powder alloy by hot extrusion
作者： Ana Karla Melle , Mauricio Mhirdaui Peres , Claudemiro Bolfarini , Walter José Botta , Alberto Moreira Jorge Junior
DOI: 10.1590/S1516-14392012005000095
关键词: Consolidation (soil) 、 Metallurgy 、 Scanning electron microscope 、 Amorphous metal 、 Alloy 、 Differential scanning calorimetry 、 Supercooling 、 Amorphous solid 、 Extrusion 、 Materials science
摘要: The amorphous Cu46Zr42Al7Y5 alloy presents large supercooled liquid region (ΔTX = 100 K), with a viscosity of about 106 N.s/m2 where the material can flow as liquid, making it possible an easy deformation in this temperature region. aim work was to analyze processing routes produce bulks metallic glasses. Two kinds materials were used: powders and ribbons, both consolidated by hot extrusion temperatures inside range between Tg Tx, ram speed 1 mm/min ratio 3 : 1. Analysis X-Ray Diffratometry (XRD), Differential Scanning Calorimetry (DSC) Electron Microscopy (SEM), revealed that proposed consolidation effective materials, even strong decreasing ΔTX observed after milling during extrusion.
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