Phase separation process preventing thermal embrittlement of a Zr-Cu-Fe-Al bulk metallic glass
| Autor: | Dmitri V. Louzguine-Luzgin, Yu.P. Ivanov, A. I. Bazlov, A.L. Greer, V.S. Zolotorevzky, Jing Jiang, Huahai Mao |
|---|---|
| Přispěvatelé: | Greer, Alan [0000-0001-7360-5439], Apollo - University of Cambridge Repository |
| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Relaxation Materials science Bulk metallic glass Phase separation Mechanical properties 02 engineering and technology 01 natural sciences Annealing (glass) 0103 physical sciences Thermal General Materials Science Composite material Embrittlement 010302 applied physics Amorphous metal Mechanical Engineering Relaxation (NMR) Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Compression (physics) Mechanics of Materials Transmission electron microscopy 0210 nano-technology |
| Zdroj: | Scripta Materialia |
| Popis: | The structural changes and mechanical properties of a Zr 63 Cu 22 Fe 5 Al 10 bulk metallic glass (BMG), and a Zr 63 Cu 27 Al 10 one made for comparison, were studied on annealing below the crystallization temperature. The phase composition of the samples was studied by conventional X-ray diffractometry and high-resolution transmission electron microscopy including the atomic-scale elemental mapping. The samples were mechanically tested in compression. The Zr 63 Cu 22 Fe 5 Al 10 bulk metallic glass shows a high strength and good deformability at room temperature both in the as-cast state and after prolonged structural relaxation below the crystallization temperature. The reasons for such behavior are discussed in the present work. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|