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Title: Investigation on friction stir processing of gravity die cast AS7U3G aluminum alloy
Researcher: John Baruch, L
Guide(s): Raju, R
Keywords: Aluminum alloy
Automobile industries
Cast microstructure
Die cast
Friction stir processing
Friction stir welding
Mechanical engineering
Mechanical properties
Upload Date: 17-Sep-2014
University: Anna University
Completed Date: 01/06/2012
Abstract: Al Si Mg alloys are widely used to cast high strength components in aerospace and automobile industries However porosity coarse acicular Si particles and coarse aluminum dendrites in the cast structure reduce the mechanical properties of the castings particularly the ductility toughness and fatigue strength Eutectic modifiers and high newlinetemperature heat treatment widely used to modify the cast microstructure cannot eliminate the porosity effectively and redistribute the silicon particles uniformly Friction stir processing a development based on friction stir welding has been proved to be a very effective route to enhance the mechanical properties of cast Al Si alloys Friction stir processing is a solid state process leading to very significant microstructural modifications FSP homogenizes and refines the cast microstructure, completely eliminates porosity and creates a microstructure with fine Si particles distributed in a fine grain aluminum matrix AS7U3G Al alloy used in this investigation is an alloy material of newlineautomotive and energy sectors for engine blocks, steering knuckles etc In this thesis an attempt is made to study the effect of different tool pin profiles tool shoulder profiles multi pass FSP and post FSP heat treatment on microstructure and mechanical properties of AS7U3G Al alloy newline
Pagination: xix, 125p.
Appears in Departments:Faculty of Mechanical Engineering

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01_title.pdfAttached File80.89 kBAdobe PDFView/Open
02_certificates.pdf1.57 MBAdobe PDFView/Open
03_abstract.pdf7.46 kBAdobe PDFView/Open
04_acknowledgement.pdf6.04 kBAdobe PDFView/Open
05_contents.pdf24.39 kBAdobe PDFView/Open
06_chapter1.pdf550.09 kBAdobe PDFView/Open
07_chapter2.pdf894.82 kBAdobe PDFView/Open
08_chapter3.pdf4.33 MBAdobe PDFView/Open
09_chapter4.pdf8.84 MBAdobe PDFView/Open
10_chapter5.pdf2.09 MBAdobe PDFView/Open
11_chapter6.pdf2.28 MBAdobe PDFView/Open
12_chapter7.pdf13.87 kBAdobe PDFView/Open
13_references.pdf20.95 kBAdobe PDFView/Open
14_publications.pdf5.28 kBAdobe PDFView/Open
15_vitae.pdf5.65 kBAdobe PDFView/Open

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