Crystallization of Al-based Amorphous Alloys in Good Conductivity Solution

The corrosion-induced crystallization of Al94 exNixGd6（x=6 and 10, in at.%） metallic glasses as well as phase separation, oxidation and cracking in good conductivity solution has been investigated by various techniques.The transmission electronic microscopy（TEM） result reveals that crystalline inter...

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Bibliographic Details
Published in:Journal of materials science & technology 2014-12, Vol.30 (12), p.1262-1270
Main Authors: Wang, Yonggang, Liu, Yan, Li, Yingjie, An, Bang, Cao, Guanghui, Jin, Shifeng, Sun, Yimin, Wang, Weimin
Format: Article
Language:English
Subjects:
Al-based glassy alloy
Amorphous alloys
Bending
Crystallization
Electronics
Fracture mechanics
Metallic glasses
Nickel
Ni含量
Oxidation
Percolation of backbone cluster
Phase separation
Ribbons
导电性
溶液结晶
电子显微镜
相分离
金属间化合物
非晶态合金
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Summary:The corrosion-induced crystallization of Al94 exNixGd6（x=6 and 10, in at.%） metallic glasses as well as phase separation, oxidation and cracking in good conductivity solution has been investigated by various techniques.The transmission electronic microscopy（TEM） result reveals that crystalline intermetallics and oxides present on the electrochemically thinned hole edge, and the phase separation occurs in the matrix of the as-spun ribbons with the circumferential speed Rcof 29.3 m/s. In addition, the bending and cracking of the samples occur after corrosion. The influence of Ni content on the phase separation, bending and cracking can be explained by the fact that the percolation of the backbone clusters in the amorphous alloy melts and glasses is enhanced by increasing the composition of Ni.
ISSN:1005-0302
1941-1162
DOI:10.1016/j.jmst.2014.10.003