Mechanical Properties of 1.5wt.% TiB2-added Hypoeutectic Al-Mg- Si Alloys Processed by Equal Channel Angular Pressing
| Autor: | Muhammad Syukron, Mayumi Ojima, Zuhailawati Hussain, Anasyida Abu Seman, Toshihiko Koseki |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Pressing Micrograph Materials science Chemistry(all) Misorientation Metallurgy Alloy 02 engineering and technology General Medicine engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Grain size 0103 physical sciences Vickers hardness test Chemical Engineering(all) engineering 0210 nano-technology Electron backscatter diffraction Eutectic system |
| Zdroj: | Procedia Chemistry. 19:106-112 |
| ISSN: | 1876-6196 |
| Popis: | In order to improve the mechanical properties and to optimize grain refinement of Al-Mg-Si alloy, ECAP processing with an addition of hard particle TiB 2 is applied in this work. Mechanical property and microstructural evolution of Al-0.3Mg-7Si+1.5 wt.% TiB 2 specimen were investigated by using hardness-testing, optical micrograph observation and electron-backscattering diffraction (EBSD). ECAP processing was done through B A route for 4 passes at room temperature. Hardness test results show that the ECAP process doubled the hardness of the specimen compared to annealed specimen, and from EBSD/OIM analysis, the ECAP processing refined grains from an average grain size of 35 μm to 0.79 μm and led to producing grains having high misorientation angle (≥15). |
| Databáze: | OpenAIRE |
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