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Temperature dependence of the thermoplastic formability in bulk metallic glasses
The temperature dependence of the maximum strain a bulk metallic glass (BMG) can undergo in its supercooled liquid state under specified conditions is determined. This formability is measured experimentally over a wide temperature range using Zr 35 Ti 30 Cu 8.25 Be 26.75 as an example BMG. When cons...
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Published in: | Journal of applied physics 2011-08, Vol.110 (4), p.043518-043518-7 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The temperature dependence of the maximum strain a bulk metallic glass (BMG) can undergo in its supercooled liquid state under specified conditions is determined. This formability is measured experimentally over a wide temperature range using Zr
35
Ti
30
Cu
8.25
Be
26.75
as an example BMG. When considering five different BMG formers, we found that the formability continuously increases with temperature. This behavior is ubiquitous among BMGs whose crystallization behavior can be described by steady state nucleation and diffusion limited growth. Therefore, in order to maximize the formability during thermoplastic forming of BMGs, the highest processing temperature should be chosen at which crystallization can still be avoided. |
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ISSN: | 0021-8979 1089-7550 |
DOI: | 10.1063/1.3624666 |