Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/17749
Title: Experimental analysis on wear behavior of sintered tungsten reinforced copper nano composite
Researcher: Vettivel S C
Guide(s): Selva Kumar N
Keywords: Artificial Neural Networks
Mechanical Engineering
Nano composite
Powder Metallurgy
Response Surface Methodology
Upload Date: 16-Apr-2014
University: Anna University
Completed Date: 01/12/2012
Abstract: Investigation and studies of materials are generally used to refine their properties for their use in applications that will benefit mankind. The strength of metallic materials facilitates to determine the usability and reliability of all the machine, tools and equipment around us. Powder Metallurgy (P/M) is one among the metal working operations, involving a near net or net-shaped manufacturing process that combines the features of shape-making technology. The present research work involves experimental investigation of the mechanical behavior of sintered copper P/M cylindrical preforms of different tungsten content namely 5, 10 and 15 % by weight basis. Cylindrical compacts of 20 mm diameter were prepared using ball milled Cu and Cu-(5- 15%) W powders. The required powders were compacted by using suitable punch and die set assembly on a Universal Testing Machine (UTM) having 1 MN capacity. Compacting pressure was applied gradually and it was 1.2 GPa for all specimens. Graphite was used to lubricate the punch, die and the butt. When preparing the compacts, the initial density of 85% of theoretical density was maintained by accurately controlling the mass and observing the compacting pressure employed. The sintering was carried out in an inert gas circulated electric muffle furnace at various sintering temperatures: 750 °C, 800 °C and 850 °C respectively for a holding period of one hour. As soon as the sintering schedule was over, the sintered preforms were cooled inside the furnace itself to the room temperature. In order to increase the relative density, the sintered preforms were extruded by the extrusion die set assembly.
Pagination: xxiv, 217p.
URI: http://hdl.handle.net/10603/17749
Appears in Departments:Faculty of Mechanical Engineering

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02_certificates.pdf684.68 kBAdobe PDFView/Open
03_abstract.pdf16.39 kBAdobe PDFView/Open
04_acknowledgement.pdf6.57 kBAdobe PDFView/Open
05_contents.pdf40.85 kBAdobe PDFView/Open
06_chapter 1.pdf641.84 kBAdobe PDFView/Open
07_chapter 2.pdf72.09 kBAdobe PDFView/Open
08_chapter 3.pdf12.14 kBAdobe PDFView/Open
09_chapter 4.pdf4.07 MBAdobe PDFView/Open
10_chapter 5.pdf7.78 MBAdobe PDFView/Open
11_chapter 6.pdf1.59 MBAdobe PDFView/Open
12_chapter 7.pdf349.6 kBAdobe PDFView/Open
13_chapter 8.pdf22.34 kBAdobe PDFView/Open
14_references.pdf58.08 kBAdobe PDFView/Open
15_publications.pdf8.26 kBAdobe PDFView/Open
16_vitae.pdf6.53 kBAdobe PDFView/Open


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