Study of Surface Melting of Pre-Plasma Sprayed WC-14%Co Low Carbon Steel
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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.
2014 ◽
Vol 54
(4)
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pp. 932-937
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2014 ◽
Vol 54
(1)
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pp. 188-192
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2009 ◽
Vol 27
(3)
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pp. 240-246
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1998 ◽
Vol 84
(2)
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pp. 131-136
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2017 ◽
Vol 26
(7)
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pp. 3160-3168
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1992 ◽
Vol 52
(2)
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pp. 141-144
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