Mechanical behavior of metallic glasses Mg–Cu–Y using nano-indentation
✍ Scribed by C. T. Pan; T. T. Wu; J. K. Tseng; C. Y. Su; W. J. Wang; J. C. Huang
- Book ID
- 106185838
- Publisher
- Springer-Verlag
- Year
- 2009
- Tongue
- English
- Weight
- 589 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0946-7076
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The crystallisation and mechanical properties of the light alloy, Mg 60 Cu 30 Y 10 bulk metallic glass (BMG) have been investigated by differential scanning calorimetry and instrumented indentation. Generally, the low-temperature plasticity of BMGs can be improved by partial devitrification to give
Structural relaxation of Mg-Cu-Y metallic glasses occurs at room-temperature ($0.7 T g ) and induces an abrupt embrittlement after periods of time that depend on the relative proportions of Cu and Mg. Internal friction measurements of as-quenched samples show that Mg 65 Cu 25 Y 10 is in a more relax