Microstructure and Microhardness of Mg/SiC Metal Matrix Composites Developed by Microwave Sintering
| Autor: | Apurbba Kumar Sharma, S. R. Gupta |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Materials science Magnesium 020209 energy Mechanical Engineering Alloy Metal matrix composite Aerospace Engineering chemistry.chemical_element Ocean Engineering 02 engineering and technology engineering.material Microstructure Indentation hardness Industrial and Manufacturing Engineering Corrosion 020901 industrial engineering & automation chemistry visual_art 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium engineering Ceramic Composite material Porosity |
| Zdroj: | Journal of The Institution of Engineers (India): Series C. 103:63-68 |
| ISSN: | 2250-0553 2250-0545 |
| Popis: | Magnesium is one of the lightest metals that are extensively used in automobile, aerospace, and medical industries. Pure magnesium is not suitable for physical applications due to low corrosion resistance. Therefore, various metals and ceramics are added to magnesium to improve its mechanical and physical properties. Consequently, the additives play significant role in the performance of the components. Nowadays, magnesium alloys and its composites are widely used in daily practices owing to their improved properties. In this article, Mg alloy/SiC metal matrix composites were developed through the microwave sintering. The AZ91 alloy was used as the metallic matrix and SiC as the reinforcement with a weight percentage of 5, 10, and 15. Scanning electron microscopy and X-ray diffractometry were used for phase and microstructural studies. Microhardness, density, and porosity were measured. Results revealed that density and microhardness increased with increasing percentage of reinforcement; consequently, the porosity decreased with the addition of SiC percentage. Results from SEM and XRD analysis have also confirmed the formation of phases that can improve the microhardness. |
| Databáze: | OpenAIRE |
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