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首页> 外文会议>Metastable, Mechanically Alloyed and Nanocrystalline Materials >Glass Forming Ability and Crystallization Behaviour of New Multicomponent (Ti_(33)Zr_(33)Hf_(33))_(60)(Ni_(50)Cu_(50))_(20)Al_(20) Alloy Developed by Equiatomic Substitution
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Glass Forming Ability and Crystallization Behaviour of New Multicomponent (Ti_(33)Zr_(33)Hf_(33))_(60)(Ni_(50)Cu_(50))_(20)Al_(20) Alloy Developed by Equiatomic Substitution

机译：等原子取代发展的新型多组分（Ti_（33）Zr_（33）Hf_（33））_（60）（Ni_（50）Cu_（50））_（20）Al_（20）合金的玻璃形成能力和结晶行为

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摘要

A new multicomponent alloy developed by equiatomic substitution is studied in terms of glass forming ability and the crystallization behaviour. The glass forming ability of (Ti_(33)Zr_(33)Hf_(33))_(60)(Ni_(50)Cu_(50))_(20)Al_(20) alloy was assessed using the supercooled liquid region and the reduced glass transition temperature, measured by differential scanning calorimetry (DSC) and differential thermal analysis (DTA). The formation of phases with the various wheel speeds from 40 m/s to 15 m/s and the crystallization behaviour was studied by X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The supercooled liquid region and the reduced glass transition temperature were 124°C and 0.525, respectively, measured from the as-quenched (Ti_(33)Zr_(33)Hf_(33))_(60)(Ni_(50)Cu_(50))_(20)Al_(20) ribbons produced with the wheel speed 40 m/s. The as-quenched (Ti_(33)Zr_(33)Hf_(33))_(60)(Ni_(50)Cu_(50))_(20)Al_(20) alloy transformed to nano-sized icosahedral phase during the first exothermic reaction. After crystallization at 700°C, this alloy transformed to hexagonal type Laves phase and Ti_2Ni type phase.
机译：研究了通过等原子取代开发的新型多组分合金的玻璃形成能力和结晶行为。使用过冷液体区域评估（Ti_（33）Zr_（33）Hf_（33））_（60）（Ni_（50）Cu_（50））_（20）Al_（20）合金的玻璃形成能力通过差示扫描量热法（DSC）和差示热分析（DTA）测量的降低的玻璃化转变温度。通过X射线衍射（XRD）和透射电子显微镜（TEM）研究了各种轮速从40 m / s到15 m / s的相的形成以及结晶行为。从淬火后的（Ti_（33）Zr_（33）Hf_（33））_（60）（Ni_（50）Cu_（ 50））_（20）Al_（20）色带，轮速为40 m / s。淬火后的（Ti_（33）Zr_（33）Hf_（33））_（60）（Ni_（50）Cu_（50））_（20）Al_（20）合金在退火过程中转变为纳米二十面体相第一次放热反应。在700℃下结晶后，该合金转变为六方型Laves相和Ti_2Ni型相。

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