About: Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation

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About: Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1088/0022-3727/47/44/445301
Description	This paper deals with the characterization of sub-surface damage caused by the machining of 100Cr6 roll bearing steel. The samples turned using tools with variable flank wears were characterized by two non-destructive techniques sensitive to defects introduced by plastic deformation: magnetic Barkhausen noise and positron annihilation. These techniques were combined with light and electron microscopy, x-ray diffraction and microhardness testing. The results of the experiment showed that damage in the sub-surface region increases with increasing flank wear, but from a certain critical value dynamic recovery takes place. The intensity of Barkhausen noise strongly decreases with increasing flank wear due to the increasing density of the dislocations pinning the Bloch walls and suppressing their motion. This was confirmed by positron annihilation spectroscopy, which enables the determination of the dislocation density directly. Hence, a good correlation between Barkhausen noise emission and positron annihilation spectroscopy was found. This paper deals with the characterization of sub-surface damage caused by the machining of 100Cr6 roll bearing steel. The samples turned using tools with variable flank wears were characterized by two non-destructive techniques sensitive to defects introduced by plastic deformation: magnetic Barkhausen noise and positron annihilation. These techniques were combined with light and electron microscopy, x-ray diffraction and microhardness testing. The results of the experiment showed that damage in the sub-surface region increases with increasing flank wear, but from a certain critical value dynamic recovery takes place. The intensity of Barkhausen noise strongly decreases with increasing flank wear due to the increasing density of the dislocations pinning the Bloch walls and suppressing their motion. This was confirmed by positron annihilation spectroscopy, which enables the determination of the dislocation density directly. Hence, a good correlation between Barkhausen noise emission and positron annihilation spectroscopy was found. (en)
Title	Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation (en)
skos:prefLabel	Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation Modification of steel surfaces induced by turning: non-destructive characterization using Barkhausen noise and positron annihilation (en)
skos:notation	RIV/00216208:11320/14:10288261!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-09436S)
http://linked.open...iv/cisloPeriodika	44
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Melikhova, Oksana Čížek, Jakub
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	30120
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10288261
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	positron annihilation; surface damage; strain hardening; dislocations; ferritic steels (en)
http://linked.open.../riv/klicoveSlovo	dislocations ferritic steels surface damage strain hardening positron annihilation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B2789BEE1055]
http://linked.open...i/riv/nazevZdroje	Journal of Physics D - Applied Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Non-destructive mapping of spatial distribution of defects in highly strained materials
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Melikhova, Oksana Čížek, Jakub Cillikova, M. Micietova, A. Neslusan, M.
http://linked.open...ain/vavai/riv/wos	000343295300013
issn	0022-3727
number of pages	17 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0022-3727/47/44/445301
http://localhost/t...ganizacniJednotka	11320

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