About: SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Certain failures of stainless steels interpreted purely in terms of fracture mechanisms may in fact be closely associated with previous damage caused by localized corrosion. The closeness of the link between fatigue and corrosion is documented by the case history of compressor blades made of grade 14Cr17Ni2 (X14CrNi17-2) stainless steel. Fatigue fracturing observed in areas near the blade root tended to follow intergranular pathways, indicating that some additional mechanism other than fatigue might be involved. This suspicion was confirmed by electrochemical potentiokinetic reactivation (EPR) measurements in situ, which revealed sensitization to intergranular corrosion. It has been found that at the transition between the blade root and the blade proper the surfaces had been ground and polished too vigorously, heating the subcutaneous layers to within the danger zone of 400-600°C. Preferential integranular attack in these locations was the initiation mechanism that provoked a subsequent failure of the blades by fatigue fracture. Certain failures of stainless steels interpreted purely in terms of fracture mechanisms may in fact be closely associated with previous damage caused by localized corrosion. The closeness of the link between fatigue and corrosion is documented by the case history of compressor blades made of grade 14Cr17Ni2 (X14CrNi17-2) stainless steel. Fatigue fracturing observed in areas near the blade root tended to follow intergranular pathways, indicating that some additional mechanism other than fatigue might be involved. This suspicion was confirmed by electrochemical potentiokinetic reactivation (EPR) measurements in situ, which revealed sensitization to intergranular corrosion. It has been found that at the transition between the blade root and the blade proper the surfaces had been ground and polished too vigorously, heating the subcutaneous layers to within the danger zone of 400-600°C. Preferential integranular attack in these locations was the initiation mechanism that provoked a subsequent failure of the blades by fatigue fracture. (en)
Title	SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE (en)
skos:prefLabel	SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE (en)
skos:notation	RIV/61989100:27360/11:86081507!RIV12-MSM-27360___
http://linked.open...avai/predkladatel	Fakulta metalurgie a materiálového inženýrství
http://linked.open...avai/riv/aktivita	V
http://linked.open...avai/riv/aktivity	V
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Blahetová, Marie Lasek, Stanislav Číhal, Vladimír Krhutová, Zdeňka
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	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	228850
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/11:86081507
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	corrosion, fatique, fracture (en)
http://linked.open.../riv/klicoveSlovo	corrosion fatique fracture
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8571753F251F]
http://linked.open...i/riv/nazevZdroje	Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava. Řada strojní
http://linked.open...in/vavai/riv/obor	JK
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	LVII
http://linked.open...iv/tvurceVysledku	Blahetová, Marie Lasek, Stanislav Kalabisová, Eva Číhal, Vladimír Krhutová, Zdeňka Míka, Jiří Turek, Libor
issn	1210-0471
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	27360
is http://linked.open...avai/riv/vysledek of	SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE SENSITIZATION TO CORROSION AS INITIATOR OF FATIGUE FRACTURE

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