Characterization of crystalline inclusions in cast bulk Zr-Cu-Ni-Al glassy alloy
Characterization of crystalline inclusions in cast bulk Zr-Cu-Ni-Al glassy alloy
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DOI：
10.2320/matertrans.45.1819
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发表时间：
2004-06
影响因子：
1.2
通讯作者：
Y. Yokoyama;T. Shinohara;K. Fukaura;A. Inoue
中科院分区：
文献类型：
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作者：
Y. Yokoyama;T. Shinohara;K. Fukaura;A. Inoue
为了弄清大块玻璃合金的内在特征，结构控制是最重要的因素。然而，传统的铸造方法很难获得单一的玻璃相。在zr基大块玻璃合金中，断口表面经常可见晶体夹杂物。在熔融合金状态下，由于不均匀成核或杂质如氧、氯化镁等，容易形成结晶夹杂物。在Zr 55 Cu 30 Ni 5 Al 10块状玻璃合金中，大多数晶体夹杂物可能被认为是典型成分为Zr 51 Cu 28 Al 21的τ 3型金属间化合物。大块玻璃合金中氧杂质的吸附量改变了晶体夹杂物的形貌。
In order to clarify intrinsic features of bulk glassy alloys, the structural control is the most significant factor. However, it is difficult to obtain a single glassy phase by conventional casting methods. Crystalline inclusions in Zr-based bulk glassy alloy are often seen on the fracture surface. Crystalline inclusions are easily formed in molten alloy state by inhomogeneous nucleation or impurities i.e. oxygen, magnesium dichloride and so on. In Zr 5 5 Cu 3 0 Ni 5 Al 1 0 bulk glassy alloy, most of the crystalline inclusions are probably considered as τ 3 type intermetallic compound with typical composition of Zr 5 1 Cu 2 8 Al 2 1 . The morphology of the crystalline inclusions is changed by the quantity of absorbed oxygen impurities in bulk glassy alloy.