Indentation Creep Behavior in Ce-Based Bulk Metallic Glasses at Room Temperature
| Autor: | Taihua Zhang, Y.R. Wang, Weihuo Li, D.M. Xing, L.C. Zhang, Bingchen Wei |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Amorphous metal
Materials science Mechanical Engineering Metallurgy Diffusion creep Nanoindentation Condensed Matter Physics Physics::Geophysics Kelvin model Creep Mechanics of Materials Condensed Matter::Superconductivity Indentation Relaxation (physics) General Materials Science Composite material Shear flow |
| Zdroj: | MATERIALS TRANSACTIONS. 46:2959-2962 |
| ISSN: | 1347-5320 1345-9678 |
| DOI: | 10.2320/matertrans.46.2959 |
| Popis: | The room temperature creep behaviors of Ce-based bulk metallic glasses were examined by the use of nanoindentation. The creep rate and creep rate sensitivity of Ce-based BMGs were derived from indentation creep curves. The low creep rate sensitivity of Ce-based BMGs indicates that the room temperature creep is dominated by localized shear flow. The experimental creep curves can be described by a generalized Kelvin model. Furthermore, the creep retardation spectrum is calculated for the Ce-based metallic glasses. The results showed that creep retardation spectrum consists of two relatively separated peaks with the well defined characteristic relaxation times. |
| Databáze: | OpenAIRE |
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