About: Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite

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About: Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The near-threshold behavior of mode II and mode III long fatigue cracks in ferritic (ARMCO iron) and austenitic (X5CrNi18-10) steel were experimentally studied using various samples specially prepared to obtain the effective threshold values deltaKIIeff,th and deltaKIIIeff,th. In both investigated materials, the effective thresholds for mode III were about 1.7 times higher than those for mode II. 3D topological data obtained by the examination of fracture surfaces using stereophotogrammetry were utilized to identify crack growth micromechanisms. In austenite, mode I branching of both the mode II and mode III cracks started at the very onset of crack growth. On the other hand, all cracks in ferrite propagated in crystallographically-assisted local mixed mode I + II + III with mode II dominance. These experimental results can be understood in terms of crack growth micromechanisms according to a deformation model in ferrite and a decohesion model in austenite. The dissimilarity of growth mechanisms in fe The near-threshold behavior of mode II and mode III long fatigue cracks in ferritic (ARMCO iron) and austenitic (X5CrNi18-10) steel were experimentally studied using various samples specially prepared to obtain the effective threshold values deltaKIIeff,th and deltaKIIIeff,th. In both investigated materials, the effective thresholds for mode III were about 1.7 times higher than those for mode II. 3D topological data obtained by the examination of fracture surfaces using stereophotogrammetry were utilized to identify crack growth micromechanisms. In austenite, mode I branching of both the mode II and mode III cracks started at the very onset of crack growth. On the other hand, all cracks in ferrite propagated in crystallographically-assisted local mixed mode I + II + III with mode II dominance. These experimental results can be understood in terms of crack growth micromechanisms according to a deformation model in ferrite and a decohesion model in austenite. The dissimilarity of growth mechanisms in fe (en)
Title	Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite (en)
skos:prefLabel	Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite (en)
skos:notation	RIV/00216305:26620/13:PU103399!RIV14-GA0-26620___
http://linked.open...avai/predkladatel	Středoevropský technologický institut
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068), P(GAP108/10/0698)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Holáň, Libor Pokluda, Jaroslav Vojtek, Tomáš
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	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	91066
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/13:PU103399
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	effective threshold, shear-mode fatigue cracks, ferrite, austenite, dislocation crack growth models, stereophotogrammetry (en)
http://linked.open.../riv/klicoveSlovo	dislocation crack growth models effective threshold shear-mode fatigue cracks stereophotogrammetry ferrite austenite
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[7D96DC1ED215]
http://linked.open...i/riv/nazevZdroje	Acta materialia
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Central european institute of technology New Approaches to Investigation of Fatigue Crack Propagation in Modes II, III and II+III
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Pokluda, Jaroslav Vojtek, Tomáš Hohenwarter, Anton Pippan, Reinhard Holáň, Libor
http://linked.open...ain/vavai/riv/wos	000321086100030
issn	1359-6454
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.actamat.2013.04.033
http://localhost/t...ganizacniJednotka	26620

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