Formation of Glassy Ti50Cu20Ni24Si4B2 Alloy by High-Energy Ball Milling
| Autor: | Liang Chi Zhang, Jian Xu |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Materials science
Amorphous metal Mechanical Engineering Metallurgy Analytical chemistry Condensed Matter Physics Condensed Matter::Disordered Systems and Neural Networks law.invention Grain growth Differential scanning calorimetry Mechanics of Materials law Phase (matter) General Materials Science Crystallization Supercooling Glass transition Ball mill |
| Zdroj: | Journal of Metastable and Nanocrystalline Materials. 13:47-52 |
| ISSN: | 2297-6620 |
| DOI: | 10.4028/www.scientific.net/jmnm.13.47 |
| Popis: | The elemental powder mixtures with a nominal composition of Ti50Cu20Ni24Si4B2 can be amorphized under high-energy ball milling. A well-defined glass transition before crystallization appears in the obtained amorphous phase during heating in a differential scanning calorimeter. A wide supercooled liquid region DeltaT(x) is available to be about 57 K. Crystallization of the ball-milled amorphous phase was performed through one step to form the metastable (Ni, Cu)Ti phase with cubic structure and an unknown phase, followed by subsequent grain growth. The reduced glass transition temperature of the alloy was determined to be 0.56. (C) 2002 Elsevier Science B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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