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Advances in Materials Science and Engineering
Volume 2013, Article ID 826758, 6 pages
http://dx.doi.org/10.1155/2013/826758
Research Article

The Effect of Cooling Rate on Microstructure and Mechanical Properties of Zr-Based Bulk Metallic Glasses

1School of Science, Tianjin Polytechnic University, Tianjin 300387, China
2School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China

Received 4 September 2013; Accepted 28 November 2013

Academic Editor: You Song

Copyright © 2013 Weihong Fu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of the present study is to shed some insights on the effect of cooling rate on the microstructure and mechanical properties for glass-forming alloys. A crystalline gradient was observed in the microstructure of 12 mm diameter Zr51Al9.96Ni14.34Cu24.9 (Zr51) alloy sample from the edge to center due to uneven cooling rates. Microhardness results indicate that the lower the cooling rate, the higher the hardness for the studied alloy.