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Title: Investigations on dry sliding wear machining and corrosion behaviour of aluminium metal matrix composites
Researcher: Shanmughasundaram P
Guide(s): Subramanian R
Keywords: Aluminium Matrix Composites
Aluminum oxide
Artificial Neural Network
Mechanical Engineering
Mechanical Mixed Layer
Scanning Electronic Microscopy
Upload Date: 18-Mar-2014
University: Anna University
Completed Date: 01/12/2012
Abstract: Aluminium Matrix Composites are used as materials in automotive newlineindustries owing to their superior strength-to -weight ratio and stiffness. newlineAluminium reinforced with conventional ceramic materials such as newlineSiC / Al2O3 are gradually being implemented in the production of components newlinein automobile industry. Fly ash (SiO2, Al2O3, Fe2O3 as major constituents and newlineoxides of Mg, Ca, Na, K etc. as minor constituents) is one of the most newlineinexpensive and low density material which is abundantly available as solid newlinewaste byproduct during combustion of coal in thermal power plants. newlineThe present investigation focused on the utilization of fly ash in newlineuseful manner by dispersing it into aluminium to produce composites by a newlinemodified two step stir casting method to overcome the cost barrier for wide newlinespread applications in automotive systems. newlineIn view of increasing commercial interest in the production of newlinecomposites, an attempt was made to study the influence of process parameters newlinesuch as size and shape of the impeller model, weight percentage of fly ash and newlinewetting agent magnesium on the distribution of fly ash particles in Al matrix newlineand mechanical properties of composites. Composites were fabricated newlineemploying a modified two step stir casting method according toTaguchi L 9 newlinetechnique. A radial impeller with 0.7 IOD/CID (Impeller outer dia to Crucible newlineinner dia) ratio was found to ensure uniform distribution of fly ash particles in newlineAl matrix along with a little deposit of the slurry on the wall surface of the newlinecrucible. Addition of Mg up to 1.5% by weight to the composite slurry increases the wettability and thus increases the mechanical properties through newlinestrong interfacial bonding between fly ash particles and the matrix. newlineInvestigations on dry sliding wear behaviour of Al and Al - fly ash newlinecomposites as a function of fly ash particle content at two different load and newlinesliding speed conditions was carried out using a pin-on-disc. newline
Pagination: xxvi, 167p.
Appears in Departments:Faculty of Mechanical Engineering

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01_title.pdfAttached File25.68 kBAdobe PDFView/Open
02_certificates.pdf799.83 kBAdobe PDFView/Open
03_abstract.pdf14.87 kBAdobe PDFView/Open
04_acknowledgement.pdf5.81 kBAdobe PDFView/Open
05_contents.pdf36.56 kBAdobe PDFView/Open
06_chapter 1.pdf15.61 kBAdobe PDFView/Open
07_chapter 2.pdf62.49 kBAdobe PDFView/Open
08_chapter 3.pdf8.85 kBAdobe PDFView/Open
09_chapter 4.pdf184.99 kBAdobe PDFView/Open
10_chapter 5.pdf735.9 kBAdobe PDFView/Open
11_chapter 6.pdf3.15 MBAdobe PDFView/Open
12_chapter 7.pdf20.06 kBAdobe PDFView/Open
13_references.pdf44.97 kBAdobe PDFView/Open
14_publications.pdf6.59 kBAdobe PDFView/Open
15_vitae.pdf5.76 kBAdobe PDFView/Open

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