Effect of pulsed electron-beam melting on the microstructure and tribology properties of WC-Hadfield steel hard alloy

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Abstract

Effects of the action of low-energy high-current electron beam pulses of microsecond duration on microstructure and tribological properties of 'WC-30% Hadfield steel' hard alloy in the friction pair with tool steel have been studied. It was established that pulsed melting and following high-speed quenching of the surface layers result in reducing the grain size of both initial carbide and binding phases as well as in formation of metastable M12C and M23C6 carbides. The microstructure changes lead to increase of the surface microhardness by a factor of 1.5, decrease of the friction coefficient by a factor of 2, and wear resistance enhancement as compared to the material in initial condition.

Original languageEnglish
Pages (from-to)19-27
Number of pages9
JournalFizika i Khimiya Obrabotki Materialov
Issue number4
Publication statusPublished - 2003

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Electron beam melting
Tribology
Steel
Carbides
Friction
Microstructure
Tool steel
Microhardness
Wear resistance
Electron beams
Quenching
Melting

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

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title = "Effect of pulsed electron-beam melting on the microstructure and tribology properties of WC-Hadfield steel hard alloy",
abstract = "Effects of the action of low-energy high-current electron beam pulses of microsecond duration on microstructure and tribological properties of 'WC-30{\%} Hadfield steel' hard alloy in the friction pair with tool steel have been studied. It was established that pulsed melting and following high-speed quenching of the surface layers result in reducing the grain size of both initial carbide and binding phases as well as in formation of metastable M12C and M23C6 carbides. The microstructure changes lead to increase of the surface microhardness by a factor of 1.5, decrease of the friction coefficient by a factor of 2, and wear resistance enhancement as compared to the material in initial condition.",
author = "Gnyusov, {S. F.} and Sergei Yulievich Tarasov and Ivanov, {Yu F.} and Rotshtejn, {V. P.}",
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T1 - Effect of pulsed electron-beam melting on the microstructure and tribology properties of WC-Hadfield steel hard alloy

AU - Gnyusov, S. F.

AU - Tarasov, Sergei Yulievich

AU - Ivanov, Yu F.

AU - Rotshtejn, V. P.

PY - 2003

Y1 - 2003

N2 - Effects of the action of low-energy high-current electron beam pulses of microsecond duration on microstructure and tribological properties of 'WC-30% Hadfield steel' hard alloy in the friction pair with tool steel have been studied. It was established that pulsed melting and following high-speed quenching of the surface layers result in reducing the grain size of both initial carbide and binding phases as well as in formation of metastable M12C and M23C6 carbides. The microstructure changes lead to increase of the surface microhardness by a factor of 1.5, decrease of the friction coefficient by a factor of 2, and wear resistance enhancement as compared to the material in initial condition.

AB - Effects of the action of low-energy high-current electron beam pulses of microsecond duration on microstructure and tribological properties of 'WC-30% Hadfield steel' hard alloy in the friction pair with tool steel have been studied. It was established that pulsed melting and following high-speed quenching of the surface layers result in reducing the grain size of both initial carbide and binding phases as well as in formation of metastable M12C and M23C6 carbides. The microstructure changes lead to increase of the surface microhardness by a factor of 1.5, decrease of the friction coefficient by a factor of 2, and wear resistance enhancement as compared to the material in initial condition.

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JO - Fizika i Khimiya Obrabotki Materialov

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