Investigations for Surface Hardness of Aluminum Matrix Composites with Hybrid Reinforcement
| Autor: | S. N. Singh, Rupinder Singh, Simranpreet Singh Gill |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Fused deposition modeling Composite number 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology Molding (process) 01 natural sciences Hardness Indentation hardness law.invention chemistry Aluminium law 0103 physical sciences Particle Particle size Composite material 021102 mining & metallurgy |
| Zdroj: | Transactions of the Indian Institute of Metals. 72:181-190 |
| ISSN: | 0975-1645 0972-2815 |
| Popis: | This work focuses on the investigations of hybrid reinforcement of SiC/Al2O3 as dual particle size and triple particle size (TPS) on the surface hardness of hybrid aluminum matrix composite (AMC) prepared with synergistic combination of fused deposition modeling, vacuum molding (V) process and stir casting. It was observed that TPS-based SiC resulted into highest microhardness of 45HV. Further, ANOVA revealed that the percentage contribution of particle size and type of reinforcement on surface hardness of AMC were 27.30% and 48.72%, respectively. The best parametric setting (of input parameters) for microhardness is: particle size—TPS, type of reinforcement—SiC, vacuum pressure—350 mm of Hg, sand grain size—70 (AFS no.), vibration time—4 s. and composition/proportion of reinforcement in Al matrix—10%, respectively, and overall, 5.1% improvement in microhardness was observed at proposed parametric setting. The presence of Al2O3/SiC responsible for the improvement in microhardness was supported by photomicrographs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink