首页> 外文会议>International Symposium on Metastable and Nano-Materials(ISMANAM-2005); 20050703-07; Paris(FR) >Effect of Al on the local structure and stability of Zr-based metallic glasses
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Effect of Al on the local structure and stability of Zr-based metallic glasses

机译:Al对Zr基金属玻璃局部结构和稳定性的影响

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The effect of Al addition on the local structure and the thermal stability in the Zr-Ni-based metallic glass is investigated. It is well known that Al is a very effective element on the enhancement of glass-forming ability (GFA), i.e., stability of supercooled liquid state in the alloy system. We have found that the dominant local structure is icosahedral-like in the Zr_(70)Al_(10)Ni__(20) metallic glass and the tetragonal Zr_2Ni-like local in the Zr_(70)Ni_(30) amorphous alloy. It is concluded that the change in the dominant local structure contributes to the enhancement of the stability of supercooled liquid state in the alloy.
机译:研究了Al添加对Zr-Ni基金属玻璃中局部结构和热稳定性的影响。众所周知,Al是增强玻璃形成能力(GFA),即合金体系中过冷液态的稳定性的非常有效的元素。我们已经发现,主要的局部结构在Zr_(70)Al_(10)Ni __(20)金属玻璃中呈二十面体状,在Zr_(70)Ni_(30)非晶态合金中呈四方Zr_2Ni状局部。结论是,主要局部结构的改变有助于增强合金中过冷液态的稳定性。

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