High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites
Mg67Zn28Ca5 amorphous alloy specimens with various volume percentage of crystalline phases were obtained by annealing fully amorphous alloy at slightly above crystallization temperature. Strain rate effect of flow stress of Mg67Zn28Ca5 amorphous alloy and its composites at supercooled liquid region...
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sg-ntu-dr.10356-850352020-03-07T12:47:13Z High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites Fu, X. L. Tan, Ming Jen Chen, Y. Jarfors, Anders E. W. Gupta, M. Shek, C. H. School of Mechanical and Aerospace Engineering A*STAR SIMTech Composites Glasses Mg67Zn28Ca5 amorphous alloy specimens with various volume percentage of crystalline phases were obtained by annealing fully amorphous alloy at slightly above crystallization temperature. Strain rate effect of flow stress of Mg67Zn28Ca5 amorphous alloy and its composites at supercooled liquid region were studied. The strain rate sensitivity m for monolithic metallic glass can approach 1, but all the composites have lower strain rate sensitivity (~0.17). After a prolonged testing period, the deformation mode of Mg67Zn28Ca5 based composites changed from superplastically into fragmentation mode. Glassy Mg67Zn28Ca5 exhibits the best superplasticity and thermal stability compared to its devitrified composites. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2016-07-19T04:38:25Z 2019-12-06T15:55:58Z 2016-07-19T04:38:25Z 2019-12-06T15:55:58Z 2014 Journal Article Fu, X. L., Tan, M. J., Chen, Y., Jarfors, A. E. W., Gupta, M., & Shek, C. H. (2015). High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites. Materials Science and Engineering: A, 621, 1-7. 0921-5093 https://hdl.handle.net/10356/85035 http://hdl.handle.net/10220/40964 10.1016/j.msea.2014.10.051 en Materials Science and Engineering: A © 2014 Elsevier. |
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Singapore |
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Composites Glasses |
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Composites Glasses Fu, X. L. Tan, Ming Jen Chen, Y. Jarfors, Anders E. W. Gupta, M. Shek, C. H. High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| description |
Mg67Zn28Ca5 amorphous alloy specimens with various volume percentage of crystalline phases were obtained by annealing fully amorphous alloy at slightly above crystallization temperature. Strain rate effect of flow stress of Mg67Zn28Ca5 amorphous alloy and its composites at supercooled liquid region were studied. The strain rate sensitivity m for monolithic metallic glass can approach 1, but all the composites have lower strain rate sensitivity (~0.17). After a prolonged testing period, the deformation mode of Mg67Zn28Ca5 based composites changed from superplastically into fragmentation mode. Glassy Mg67Zn28Ca5 exhibits the best superplasticity and thermal stability compared to its devitrified composites. |
| author2 |
School of Mechanical and Aerospace Engineering |
| author_facet |
School of Mechanical and Aerospace Engineering Fu, X. L. Tan, Ming Jen Chen, Y. Jarfors, Anders E. W. Gupta, M. Shek, C. H. |
| format |
Article |
| author |
Fu, X. L. Tan, Ming Jen Chen, Y. Jarfors, Anders E. W. Gupta, M. Shek, C. H. |
| author_sort |
Fu, X. L. |
| title |
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| title_short |
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| title_full |
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| title_fullStr |
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| title_full_unstemmed |
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites |
| title_sort |
high temperature deformation behavior of mg67zn28ca5 metallic glass and its composites |
| publishDate |
2016 |
| url |
https://hdl.handle.net/10356/85035 http://hdl.handle.net/10220/40964 |
| _version_ |
1681044204538560512 |