Microstructures and mechanical properties of MgOp/SPHC metal matrix composites joint by friction stir welding
| Autor: | Byung-Wook Ahn, Seung-Boo Jung, Jae-Ha Kim, Don-Hyun Choi |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0209 industrial biotechnology
Mechanical property Materials science Mechanical Engineering Metallurgy 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure Matrix (geology) Metal 020901 industrial engineering & automation Mechanics of Materials visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Friction stir welding Composite material 0210 nano-technology Joint (geology) |
| Zdroj: | Journal of Composite Materials. 50:1581-1586 |
| ISSN: | 1530-793X 0021-9983 |
| DOI: | 10.1177/0021998315579231 |
| Popis: | The SPHC/MgO composites were fabricated by friction stir welding (FSW) and then the mechanical property of the composites was investigated. MgO particles were flocculated on the advancing side in the stir zone (SZ) formed by one-pass processing. On the other hand, MgO particles were more homogenously distributed in the SZ formed by two-pass processing. Compared to the SZ without MgO particles, the hardness profile of the SZ with MgO particles was increased to 20–30 Hv due to refined grain by pinning effect. Grain growth in the SZ without MgO particles was observed at elevated temperature. On the other hand, the fine grain produced with MgO particles was maintained at elevated temperature (∼900℃) due to pinning effect by MgO particles. |
| Databáze: | OpenAIRE |
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