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Tungsten Carbide Dispersed High Cr-Ni Cast Iron Produced by Plasma Spraying

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Abstract:

Fe-C-W-Cr-Ni alloy powder in diameter of 32-53 μm made by argon atomization was low-pressure plasma sprayed to produce high Cr-Ni cast iron base deposits with finely dispersed tungsten carbide particles. The as-sprayed deposit produced on a non-cooled substrate was composed of γFe, αFe and carbide. The fine precipitates in the as-sprayed deposit were carbide. With increasing heat treatment temperature up to 1273 K, the carbide particles coarsened. The as-sprayed deposit produced on a non-cooled substrate had higher hardness than the heat-treated deposits. The wear resistance of the as-sprayed deposit produced on a non-cooled substrate was lower than that of heat-treated deposits. The as-sprayed deposit produced on a non-cooled substrate and heat-treated deposits had higher wear resistance than commercial stainless steel.

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Periodical:

Materials Science Forum (Volume 891)

Pages:

565-568

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.891.565

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Online since:

March 2017

Authors:

Yasuhiro Hoshiyama*, Kyouhei Yamaguchi, Hidekazu Miyake

Keywords:

High Cr-Ni Cast Iron, Particles, Plasma Spray, Rapid Solidification, Tungsten Carbide

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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