Tensile Fractography of Artificially Aged Al6061-SiC+B4C Hybrid Composites
| Autor: | Pavan Hiremath, M. C. Gowrishankar, B M Gurumurthy, Manjunath Shettar, Sathyashankara Sharma |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering Fractography 02 engineering and technology Boron carbide 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Mechanics of Materials Ultimate tensile strength Silicon carbide General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. 995:3-8 |
| ISSN: | 1662-9752 |
| Popis: | In the current work Al6061 hybrid composites reinforced with Silicon Carbide (SiC) and Boron Carbide (B4C) were studied for improvement in hardness and behavior of fracture surface after artificial aging. It was found that after aging at 100 and 200 OC, presence of SiC and B4C particles in the Hybrid Al6061 Matrix Composites showed substantial improvement in hardness compared to that of the base alloy. Behavior of fracture mechanism after tensile strength have been discussed to conclude the factors which impact the mechanism of crack growth. Presence of SiC and B4C reinforcement particulates and artificially aged at 100°C for Al6061-SiC+ B4C hybrid metal matrix composite shows enhancement in hardness by 180% and tensile strength by 80% due to the presence of finer secondary solute rich intermetallic phases of alloying elements. Fractography analysis displays particle interface failure and combination of brittle and ductile mode of failure. |
| Databáze: | OpenAIRE |
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