Effect of twin boundary segregation on damping properties in magnesium alloy
| Autor: | Dudekula Althaf Basha, Alok Singh, Hiroyuki Watanabe, Hidetoshi Somekawa, Tadanobu Inoue |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Mathematics::General Mathematics Annealing (metallurgy) Binary alloy chemistry.chemical_element 02 engineering and technology 01 natural sciences Damping capacity Condensed Matter::Superconductivity 0103 physical sciences General Materials Science Composite material Magnesium alloy Shrinkage 010302 applied physics Mechanical Engineering Metallurgy Metals and Alloys Yttrium 021001 nanoscience & nanotechnology Condensed Matter Physics Vibration chemistry Mechanics of Materials 0210 nano-technology Crystal twinning |
| Zdroj: | Scripta Materialia. 129:35-38 |
| ISSN: | 1359-6462 |
| Popis: | The effect of solute segregation at deformation twin boundaries on the strength (hardness) and damping capacity was investigated using an extruded Mg-Y binary alloy. The existence of deformation twin brought about an increase in both the hardness and the damping capacity. However, a subsequent annealing had a different effect, in which segregation at twin boundaries led to a decrease in the damping capacity. This is because the segregation of yttrium stabilized the twin boundaries; as a result, these boundaries inhibited alternate shrinkage and growth of deformation twin, by which the vibration energy is absorbed. |
| Databáze: | OpenAIRE |
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