Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/25897
Title: Studies on stellite 6 hardfaced gate valve by plasma transferred arc welding process
Researcher: Sivagami, S M
Guide(s): Murugan, N
Keywords: Mechanical Engineering
Arc welding process
Central composite rotatable design
Gate valve
Mechanical engineering
Plasma transferred arc welding process
Stellite 6 hardfaced gate valve
Upload Date: 25-Sep-2014
University: Anna University
Completed Date: 01/12/2011
Abstract: newlineWeld hardfacing is one of the surfacing process in which wear resistant material is deposited onto a carbon or low alloy steel base metal It is widely employed for fabrications and in the repair of valves and valve components for use in oil chemical and other innumerable industries However weld hardfacing lacks popularity due to certain limitations such as deterioration of geometrical mechanical metallurgical and tribological properties etc which are inherent to the welding process The present investigation addresses those problems and provides some solution to overcome those limitations In the present investigation stellite 6 was deposited on low alloy steel gate valves using Plasma Transferred Arc surfacing process Five factors five levels Central Composite Rotatable Design was selected for conducting the experiments The experiments were carried out as per design matrix by laying four linear bead and single circular bead on gate valves The hardfacings were analyzed by regression models to reveal the influence of significant process parameters such as welding current welding speed powder feed rate plasma gas flow rate and oscillation frequency on the geometrical mechanical metallurgical and tribological properties of the hardfaced gate valves newline
Pagination: xxvii, 161p.
URI: http://hdl.handle.net/10603/25897
Appears in Departments:Faculty of Mechanical Engineering

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01_title.pdfAttached File87.21 kBAdobe PDFView/Open
02_certificates.pdf3.11 MBAdobe PDFView/Open
03_abstract.pdf9.81 kBAdobe PDFView/Open
04_acknowledgement.pdf5.93 kBAdobe PDFView/Open
05_contents.pdf35.02 kBAdobe PDFView/Open
06_chapter1.pdf24.69 kBAdobe PDFView/Open
07_chapter2.pdf190.39 kBAdobe PDFView/Open
08_chapter3.pdf3.9 MBAdobe PDFView/Open
09_chapter4.pdf312.46 kBAdobe PDFView/Open
10_chapter5.pdf10.24 MBAdobe PDFView/Open
11_chapter6.pdf1.08 MBAdobe PDFView/Open
12_chapter7.pdf12.37 kBAdobe PDFView/Open
13_references.pdf52.37 kBAdobe PDFView/Open
14_publications.pdf7.39 kBAdobe PDFView/Open
15_vitae.pdf5.59 kBAdobe PDFView/Open


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