Plasticity of a TiCu-based bulk metallic glass: Effect of cooling rate

Compressive deformation was experimentally investigated for Ti41.5Cu42.5Zr2.5Hf5Ni7.5Si1 bulk metallic glass (BMG) fabricated at different cooling rates. It was found that the ductility of the BMG alloy increased with increasing of the cooling rate in solidification. The alloy with a monolithic amor...

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Bibliographic Details
Published in:Journal of materials research 2007-11, Vol.22 (11), p.3067-3074
Main Authors: Shen, J., Huang, Y.J., Sun, J.F.
Format: Article
Language:English
Subjects:
Alloy
Amorphous
Fracture
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Summary:Compressive deformation was experimentally investigated for Ti41.5Cu42.5Zr2.5Hf5Ni7.5Si1 bulk metallic glass (BMG) fabricated at different cooling rates. It was found that the ductility of the BMG alloy increased with increasing of the cooling rate in solidification. The alloy with a monolithic amorphous structure exhibited a large ductility, up to 12%. The effect of cooling rate on the ductility of the BMG alloy is interpreted in terms of the variation in amorphous nature and free volume of the as-cast materials.
ISSN:0884-2914
2044-5326
DOI:10.1557/JMR.2007.0410