The effect of pulsed electron beam melting on microstructure, friction and wear of WC–Hadfield steel hard metal

The effect of pulsed electron beam melting on microstructure, friction and wear of WC–Hadfield steel hard metal

Detalhes bibliográficos
Parent link:Wear: Scientific Journal
Vol. 257, iss. 1-2.— 2004.— [P. 97-103]
Outros Autores: Gnyusov S. F. Sergey Fedorovich, Tarasov S. Yu. Sergei Yulievich, Ivanov Yu., Rothstein V.
Resumo:Title screen
Both structure and phase transformations in subsurface layers as well as the tribological characteristics of WC+30 wt.% Hadfield steel hard metal subjected to pulsed electron beam melting and then rubbed against a disk made of tool steel have been investigated. The melting was induced by a low-energy (10–40 keV), high-current electron beam (2.5 µS, 5–40 J/cm2). It has been established that the pulsed melting and following high-speed quenching of the subsurface layers resulted in reducing the grain size of both initial carbide and binding phases as well as in forming metastable carbides of type M12C and M23C6. It has been shown that the microstructural changes provided an increase in the surface microhardness by a factor of 1.5, a decrease in the friction coefficient by a factor of 2, and enhanced wear resistance, as compared to the untreated material
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglês
Publicado em: 2004
Assuntos:
электронный ресурс
труды учёных ТПУ
wear
износ
friction
трение
electron beam melting
электронно-лучевые установки
tungsten carbide
карбид вольфрама
steels
стали
Acesso em linha:http://dx.doi.org/10.1016/j.wear.2003.10.011
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=636218

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