Influences of melt superheat treatment on glass forming ability and properties of Al84Ni10La6 alloy
Influences of melt superheat treatment on glass forming ability and properties of Al84Ni10La6 alloy
复制标题
熔体过热处理对Al84Ni10La6合金玻璃形成能力及性能的影响
DOI：
10.1016/j.matdes.2012.12.002
复制
发表时间：
2013-05
影响因子：
8.4
通讯作者：
Geng, Haoran
中科院分区：
文献类型：
--
作者：
Li, Cancan;Pang, Siyuan;Leng, Jinfeng;Geng, Haoran
采用真空电弧熔炼和单辊熔旋装置，在不同冷却速率和熔体过热温度下制备了Al84Ni10La6合金带材。通过X射线衍射(XRD)、差示扫描量热法(DSC)、电化学动电位极化测试和硬度测试研究了Al84Ni10La6合金的非晶形成能力和性能。结果表明，熔体过热处理增强了该合金的玻璃形成能力，同时对其热稳定性、耐腐蚀性和硬度也产生了有益的影响。同时，熔体结构变得均匀、致密和无序，并与熔体温度呈现非线性关系，表明其随着熔体温度的升高分别呈现均匀的熔体特征和不均匀的变化。
Al84Ni10La6alloy ribbons were prepared at different cooling rate and melt superheat temperature by vacuum arc melting and single roller melt-spinning devices. The glass forming ability and properties of Al84Ni10La6alloy were investigated by X-ray diffraction (XRD), differential scanning calorimetry (DSC), electrochemical potentiodynamic polarization test and hardness test. The results reveal that the melt superheat treatment enhances the glass forming ability of this alloy, and also has beneficial influences on its thermal stability, corrosion resistance and hardness. Simultaneously, the melt structure becomes homogeneous, dense and disordered, and shows a nonlinear relationship with melt temperature, indicating its uniform melt feature and inhomogeneous change respectively with the increase of the melt temperature.
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