About: Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The samples made from the Vanadis 6 PM ledeburitic tool steel were surface machined to different quality and heat treated by standard regime of the processing. Three point bending tests were carried out on processed samples. It was found that the flexural strength decreased with decreasing surface quality. The lowering of flexural strength has been accompanied with the decrease of the plastic component of plastic straining preceeding to fracture initiation (work of fracture) of the material. It indicates that the surface roughness leads to the crack initiation before a larger plastic deformation of the material can be developed. Based on the results it can be suggested that to prevent the cracking of tools in the practice it is essential to make a surfaře machining (grinding, lapping, polishing) to as high quality as possible. The samples made from the Vanadis 6 PM ledeburitic tool steel were surface machined to different quality and heat treated by standard regime of the processing. Three point bending tests were carried out on processed samples. It was found that the flexural strength decreased with decreasing surface quality. The lowering of flexural strength has been accompanied with the decrease of the plastic component of plastic straining preceeding to fracture initiation (work of fracture) of the material. It indicates that the surface roughness leads to the crack initiation before a larger plastic deformation of the material can be developed. Based on the results it can be suggested that to prevent the cracking of tools in the practice it is essential to make a surfaře machining (grinding, lapping, polishing) to as high quality as possible. (en)
Title	Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness (en)
skos:prefLabel	Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness (en)
skos:notation	RIV/68081723:_____/11:00361261!RIV12-AV0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/09/1821), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Dlouhý, Ivo
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	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	200285
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/11:00361261
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	PM Cr-V ledeburitic steel; Microstructure; Surface roughness; Three point bending strength; Fractography (en)
http://linked.open.../riv/klicoveSlovo	Fractography PM Cr-V ledeburitic steel Three point bending strength Microstructure Surface roughness
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[DE0E01DA6E2A]
http://linked.open...i/riv/nazevZdroje	Materiálové inžinierstvo - Materials Engineering
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Mechanical and fracture properties of multilayered ceramic/ceramic and ceramic/metal materials with graded layers
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	-
http://linked.open...iv/tvurceVysledku	Dlouhý, Ivo Jurči, P.
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	1335-0803
number of pages	8 (xsd:int)

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