Fatigue strength of wheathering steel ATMOFIX 52A

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue strength of wheathering steel ATMOFIX 52A

Popis výsledku v původním jazyce

Deterioration of fatigue properties of weathering steels is a serious problem of operating life of engineering components subjected to corrosion and cyclic loads. There are two possible mechanisms of damage, which are discussed in literature. There is aneffect of surface roughening, which develops during corrosion, and an effect of corrosion cracks, which can influence the fatigue crack initiation. The paper contains results of an experimental determination of fatigue life of ATMOFIX 52A grade steel with a corroded surface and comparison with the fatigue strength of basic smooth material. The notch effect of corrosion dimples, which initiated fatigue cracks, was determined on the basis of fractographic observation and numerical evaluation of stress concentration. It has been found that the reduction of the fatigue life can be quantitatively well predicted by means of the fatigue notch effect of corrosion dimples. No risky corrosion cracks were found in the studied corroded material

Název v anglickém jazyce

Fatigue strength of wheathering steel ATMOFIX 52A

Popis výsledku anglicky

Deterioration of fatigue properties of weathering steels is a serious problem of operating life of engineering components subjected to corrosion and cyclic loads. There are two possible mechanisms of damage, which are discussed in literature. There is aneffect of surface roughening, which develops during corrosion, and an effect of corrosion cracks, which can influence the fatigue crack initiation. The paper contains results of an experimental determination of fatigue life of ATMOFIX 52A grade steel with a corroded surface and comparison with the fatigue strength of basic smooth material. The notch effect of corrosion dimples, which initiated fatigue cracks, was determined on the basis of fractographic observation and numerical evaluation of stress concentration. It has been found that the reduction of the fatigue life can be quantitatively well predicted by means of the fatigue notch effect of corrosion dimples. No risky corrosion cracks were found in the studied corroded material

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Applied Mechanics 2011 - Conference Proceedings

ISBN

978-80-87434-03-1

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

127-130

Název nakladatele

Ústav fyziky materiálů, AV ČR, v.v.i

Místo vydání

Brno

Místo konání akce

Velké Bílovice

Datum konání akce

18. 4. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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