Influence of Sever Plastic Deformation on the Consolidation Behavior of Al-SiC Mixed Powder
| Autor: | Ke Min Xue, Chen Hao Qian, Hong Li Liu, Ping Li |
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| Rok vydání: | 2017 |
| Předmět: |
Pressing
Materials science Consolidation (soil) Mechanical Engineering Metallurgy Composite number Torsion (mechanics) 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure 01 natural sciences 0104 chemical sciences Corrosion stomatognathic system Mechanics of Materials Ultimate tensile strength General Materials Science Severe plastic deformation Composite material 0210 nano-technology |
| Zdroj: | Key Engineering Materials. 732:38-42 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.732.38 |
| Popis: | Oxidized and non-oxidized SiC particulates were mixed with Al powder respectively and the two kinds of mixed powders were consolidated at 250°C by equal channel angular pressing and torsion (ECAP-T), which belongs to severe plastic deformation. The interfacial bondings of as-consolidated composites were characterized by SEM images, corrosion morphology and fracture morphology. The results show that after severe plastic deformation, the interfacial bonding between non-oxidized SiC and Al is a kind of mechanical bonding and the consolidation is not firm enough so that the composite has a weak corrosion resistance and its tensile sample has a brittle fracture. However, the composite containing oxidized SiC has a dense microstructure, high corrosion resistance, ductile fracture due to the metallurgical interface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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