Eutectic crystallization during fracture of Zr–Cu–Co–Al metallic glass

Eutectic crystallization during fracture of Zr–Cu–Co–Al metallic glass

We report a eutectic-type crystallization phenomenon during the fracture of a Zr-based bulk metallic glass. The eutectic crystalline colonies are found to have an average visible diameter of 390±190nm. This process gives a direct evidence for the deformation-induced crystallization caused by tempera...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2016-03, Vol.657, p.210-214
Hauptverfasser: Wang, Zhi, Ketov, Sergey V., Sun, Baoan, Chen, Chunlin, Churyumov, Alexander Yu, Louzguine-Luzgin, Dmitri V.
Format: Artikel
Sprache:eng
Schlagworte:
Amorphous materials
AMORPHOUS STRUCTURE
Bulk amorphous alloys
CRYSTAL STRUCTURE
Crystallization
Deformation-induced crystallization
Eutectic phase transformation
Eutectic temperature
Fracture
Fracture mechanics
GLASSES
Mechanical characterization
Metallic glasses
PHASE DIAGRAMS
Zirconium
ZIRCONIUM ALLOYS (50 TO 99 ZR)
Zirconium base alloys
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Zusammenfassung:We report a eutectic-type crystallization phenomenon during the fracture of a Zr-based bulk metallic glass. The eutectic crystalline colonies are found to have an average visible diameter of 390±190nm. This process gives a direct evidence for the deformation-induced crystallization caused by temperature rise, which can reach as high as 1000K. Meanwhile, the occurrence of eutectic crystallization is found to be closely correlated with the plasticity of bulk metallic glass.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2016.01.096