Study of Surface Melting of Pre-Plasma Sprayed WC-14%Co Low Carbon Steel

M. Heydarzadeh Sohi; S. Shahbazi; Ayyub Halvaee

doi:10.4028/www.scientific.net/AMR.445.697

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 445Study of Surface Melting of Pre-Plasma Sprayed...

Study of Surface Melting of Pre-Plasma Sprayed WC-14%Co Low Carbon Steel

Abstract:

In this study tungsten inert gas (TIG) surface melting of pre- plasma sprayed WC-14%Co low carbon steel has been studied. Surface melting was performed under different heat inputs by using various TIG parameters including intensity and kind of current. Microstructure and microhardness of surface alloyed specimens were then studied. Eutectic structures containing tungsten-rich carbides were shaped in a matrix including martensite lath, when high heat input was used. Decreasing at heat input affected the microstructure of the alloyed layers, and high amount of faceted tungsten-rich carbides (Fe₃W₃C) were formed in fairly low heat input. Microhardness of melted layers highly improved in comparison with that of the substrate.

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Periodical:

Advanced Materials Research (Volume 445)

Pages:

697-701

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.445.697

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Online since:

January 2012

Authors:

M. Heydarzadeh Sohi, S. Shahbazi, Ayyub Halvaee

Keywords:

Low Carbon Steel, Surface Alloying, TIG, Tungsten Carbide

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