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Experience with explosive hardening of railway frogs from hadfield steel

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dc.title Experience with explosive hardening of railway frogs from hadfield steel en
dc.contributor.author Havlíček, Petr
dc.contributor.author Bušová, Kateřina
dc.relation.ispartof METAL 2012 - Conference Proceedings, 21st International Conference on Metallurgy and Materials
dc.identifier.isbn 978-808729431-4
dc.date.issued 2012
dc.citation.spage 705
dc.citation.epage 711
dc.event.title 21st International Conference on Metallurgy and Materials, METAL 2012
dc.event.location Brno
utb.event.state-en Czech Republic
utb.event.state-cs Česká republika
dc.event.sdate 2012-05-23
dc.event.edate 2012-05-25
dc.type conferenceObject
dc.language.iso en
dc.publisher TANGER Ltd.
dc.relation.uri http://metal2012.tanger.cz/files/proceedings/02/index_cz.htm
dc.subject railway turnout en
dc.subject Hadfield steel en
dc.subject frog en
dc.subject explosive hardening en
dc.subject surface hardness en
dc.description.abstract A railway turnout is a special construction allowing a ride of a railway vehicle in a given direction. A part of each turnout is a frog (alternatively - crossing), it allows to cross rails and a definitive tracks separation of two different directions. The most suitable material for a production of extremely stressed railway turnouts frogs is austenitic highly alloyed manganese steel - Hadfield steel. This steel, with chemical composition of carbon (1,2%), mangan (12%), silicon (0,45%) and austenitic structure, is able to harden its working surface (i.e. to increase its surface hardness) under a sufficient pressure and shock loading because of railway wheels shocks during the train passage through the turnout. But the hardening of Mn frog running surfaces can be done before its inserting into the track using a special technology - explosive hardening. This special Mn frogs hardening technology uses world's leading manufacturers of railway turnouts. DT-Výhybkárna a strojírna, company registers recently great interest, especially from foreign customers, in railway turnouts contain Mn frogs with explosive hardened running surfaces. Foreign customers requirements vary depending on internal regulations, standards and norms of the country where the turnout will be installed. This article shows Hadfield steel explosive hardening tests, which had to be made because of fulfillment with requirements of existing and future explosive hardened Mn frogs customers. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1006230
utb.identifier.scopus 2-s2.0-84923862546
utb.identifier.wok 000318506500108
utb.source d-scopus
dc.date.accessioned 2016-04-28T10:38:14Z
dc.date.available 2016-04-28T10:38:14Z
utb.contributor.internalauthor Bušová, Kateřina
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