About: Microstructure of Tool Steel X37CrMoV5 after Cryogenic Treatment and its Effect on Wear Resistance

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A deep cryogenic heat treatment (DCT) was applied to X37CrMoV5 steel, which included soaking at -160°C for 12 and 30 hours followed by tempering at 180°C. Microstructures were compared with those after conventional heat treatment (HT). Microstructures with conspicuous dendritic segregation were observed in all specimens. After HT coarser and finer tempered martensite occurred in depleted and enriched areas of carbon and alloying elements respectively. Coarse molybdenum and vanadium carbides, fine secondary Fe2MoC carbides and retained austenite were identified after HT. Deep freezing resulted in microstructure refinement, transformation of retained austenite into twinned martensite, spinodal decomposition of martensite plates and precipitation of semicoherent eta-carbide. The mechanism of eta-carbide precipitation was discussed. Wear rate was measured using pin-on-disc test. The best results were obtained after DCT with cryosoaking for 12 hours. A deep cryogenic heat treatment (DCT) was applied to X37CrMoV5 steel, which included soaking at -160°C for 12 and 30 hours followed by tempering at 180°C. Microstructures were compared with those after conventional heat treatment (HT). Microstructures with conspicuous dendritic segregation were observed in all specimens. After HT coarser and finer tempered martensite occurred in depleted and enriched areas of carbon and alloying elements respectively. Coarse molybdenum and vanadium carbides, fine secondary Fe2MoC carbides and retained austenite were identified after HT. Deep freezing resulted in microstructure refinement, transformation of retained austenite into twinned martensite, spinodal decomposition of martensite plates and precipitation of semicoherent eta-carbide. The mechanism of eta-carbide precipitation was discussed. Wear rate was measured using pin-on-disc test. The best results were obtained after DCT with cryosoaking for 12 hours. (en)
Title	Microstructure of Tool Steel X37CrMoV5 after Cryogenic Treatment and its Effect on Wear Resistance Microstructure of Tool Steel X37CrMoV5 after Cryogenic Treatment and its Effect on Wear Resistance (en)
skos:prefLabel	Microstructure of Tool Steel X37CrMoV5 after Cryogenic Treatment and its Effect on Wear Resistance Microstructure of Tool Steel X37CrMoV5 after Cryogenic Treatment and its Effect on Wear Resistance (en)
skos:notation	RIV/47718684:_____/15:#0000595!RIV15-TA0-47718684
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TE01020118)
http://linked.open...iv/cisloPeriodika	2015
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jandová, Dagmar
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný a zkušební ústav Plzeň s.r.o.
http://linked.open...dnocenehoVysledku	280
http://linked.open...ai/riv/idVysledku	RIV/47718684:_____/15:#0000595
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	tool steel, cryogenic treatment, microstructure, transmission electron microscopy, wear resistance (en)
http://linked.open.../riv/klicoveSlovo	wear resistance microstructure transmission electron microscopy tool steel cryogenic treatment
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[D0D1F1443045]
http://linked.open...i/riv/nazevZdroje	Key engineering materials
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Electron microscopy
http://linked.open...UplatneniVysledku	2015
http://linked.open...v/svazekPeriodika	647
http://linked.open...iv/tvurceVysledku	Jandová, Dagmar Šuchmann, Pavel Nižanská, Jana
issn	1662-9795
number of pages	15 (xsd:int)

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