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INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016 open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15 |
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| Paper Title: | Investigation of Mechanical Behavior on Al LM 24/Si3N4/Graphite Hybrid Composites |
| Authors Name: | Dr. A.Senthilkumar , J.Vairamuthu , P.Viswabharathy |
| Unique Id: | IJSDR1704105 |
| Published In: | Volume 2 Issue 4, April-2017 |
| Abstract: | Aluminium MMCs are preferred to other conventional materials in the fields of aerospace, automotive and marine applications owing to their improved properties like high strength to weight ratio, good wear resistance etc. In the present work an attempt has been made to synthesize metal matrix composite using Aluminium LM 24 as matrix material reinforced with silicon nitride (Si3N4) and graphite particulates using liquid metallurgy route in particular stir casting technique. The addition level of reinforcement is being varied from 10-11wt% in Si3N4 and 7% graphite. For each composite, reinforcement particles were preheated to a temperature of 2,2560C and then dispersed in steps of three into the vortex of molten Aluminium LM 24 to improve wettability and distribution. Micro structural characterization was carried out for the above prepared composites by taking specimens from central portion of the casting to ensure homogeneous distribution of particles. Hardness and tensile properties of the prepared composite were determined before and after addition of Si3N4 graphite particulates to note the extent of improvement. Micro structural characterization of the composites has revealed fairly uniform distribution and some amount of grain refinement in the specimens. Further, the hardness and tensile properties are higher in case of composites when compared to commercial aluminium and mild steel bars. |
| Keywords: | Metal Matrix Composite (MMC), LM 24, Si3N4, Graphite, Hardness. |
| Cite Article: | "Investigation of Mechanical Behavior on Al LM 24/Si3N4/Graphite Hybrid Composites", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.2, Issue 4, page no.552 - 564, April-2017, Available :http://www.ijsdr.org/papers/IJSDR1704105.pdf |
| Downloads: | 000337070 |
| Publication Details: | Published Paper ID: IJSDR1704105 Registration ID:170303 Published In: Volume 2 Issue 4, April-2017 DOI (Digital Object Identifier): http://www.dx.doi.org/10.5281/zenodo.579697 Page No: 552 - 564 Publisher: IJSDR | www.ijsdr.org ISSN Number: 2455-2631 |
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