Influence of casting temperature on microstructures and mechanical properties of Cu50Zr45.5Ti2.5Y2 metallic glass prepared using copper mold casting [+ Erratum]

Zhu, Zhengwang and Zhang, Haifeng and Wang, Hao and Ding, Bingzhe and Hu, Zhuang-Qi and Huang, Han (2009) Influence of casting temperature on microstructures and mechanical properties of Cu50Zr45.5Ti2.5Y2 metallic glass prepared using copper mold casting [+ Erratum]. Journal of Materials Research, 24 (10). pp. 3108-3115. ISSN 0884-2914

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Abstract

We investigated the influence of casting temperatures on microstructures and mechanical properties of rapidly solidified Cu50Zr45.5Ti2.5Y2 alloy. With casting temperatures increasing, the content of the crystalline phase decreases. At high casting temperature, i.e., 1723 K, glass forming ability (GFA) of the present alloy enhanced. It is implied that adjusting casting temperatures could be used for designing the microstructures of bulk metallic glass matrix composite (BMGC). Nano-indentation tests indicated that CuZr phases is a little softer and can accommodate more plastic deformation than the amorphous matrix. Compression tests confirmed that this kind of the second phase (CuZr) precipitated under lower casting temperatures helps to initiate multiple shear bands, resulting in great improvement of mechanical properties of the samples. Our work indicate that casting temperatures lead a great influence on GFA, microstructures and mechanical properties of rapidly solidified alloy and controlling casting temperatures is crucial to the application of BMGs.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2009 Materials Research Society. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. Erratum 25(3) March 2010 p605 2-s2.0-77958092056. doi:10.L557/JMR.2010.0080
Depositing User: Dr Hao Wang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 23 Oct 2011 06:23
Last Modified: 05 Aug 2014 01:51
Uncontrolled Keywords: amorphous matrices; bulk metallic glass matrix composite; casting temperatures; compression tests; copper mould casting; crystalline phase; glass-forming ability; microstructures and mechanical properties; nanoindentation tests; rapidly solidified; second phase
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091206 Glass
09 Engineering > 0912 Materials Engineering > 091207 Metals and Alloy Materials
10 Technology > 1007 Nanotechnology > 100799 Nanotechnology not elsewhere classified
Socio-Economic Objective (SEO2008): B Economic Development > 86 Manufacturing > 8612 Fabricated Metal Products > 861203 Metal Castings
Identification Number or DOI: 10.1557/jmr.2009.0373
URI: http://eprints.usq.edu.au/id/eprint/8203

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