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Crystallization Kinetics of Co48Cr15Mo14C15B6Er2 Bulk Metallic Glass with High Thermal Stability |
| MEN Hua;PANG Shu-Jie;LI Ran;ZHANG Tao |
| Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Cite this article: |
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MEN Hua, PANG Shu-Jie, LI Ran et al 2006 Chin. Phys. Lett. 23 417-419 |
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Abstract We investigate the crystallization kinetics of Co48Cr15Mo14C15B6Er2 bulk metallic glass. It is found that Co48Cr15Mo14C15B6Er2 alloy shows extraordinary glass-forming ability, and a fully glassy rod with a diameter of 10,mm can be formed. Thermal analysis exhibits that this glassy alloy has a high thermal stability. Johnson--Mehl--Avrami analysis of isothermal differential scanning calorimetry demonstrates that the crystalline phases homogeneously nucleates at a constant rate and grows linearly at a constant rate in three dimensions in the supercooled liquid of the glassy alloy.
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| Keywords:
61.43.Dq
64.70.Pf
65.60.+a
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Published: 01 February 2006
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| PACS: |
61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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64.70.Pf
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65.60.+a
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(Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc.)
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