Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F05%3A00024832" target="_blank" >RIV/68081723:_____/05:00024832 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel
Original language description
The kinetics of short crack growth has been studied in austenitic-ferritic 2205 duplex stainless steel. Smooth cylindrical specimens and specimens with shallow notch were subjected to constant plastic strain amplitude loading. The crack growth was studied in notched specimens. The notch area has been mechanically and electrolytically polished to facilitate the observation of crack initiation and growth. The initiated cracks were observed in SEM. The crack growth was studied using long distance QUESTAR optical microscope equipped with high-resolution camera. In constant plastic strain amplitude loading the micro-cracks were initiated and their growth kinetics has been studied. The characteristic features of the crack growth at different plastic strain amplitudes were recorded. Two approaches to analyse the crack growth rates were adopted. The comparison of the prediction of the fatigue life using the plastic strain dependent crack growth rate was compared with Manson-Coffin law and t...
Czech name
Růst krátkých trhlin a únavová životnost austeniticko-feritické duplexní oceli
Czech description
Kinetika růstu krátkých trhlin byla studována v austeniticko-feritické duplexní nerezové oceli. Hladké vzorky a vzorky s mělkým vrubem byly zatěžovány s konstantní amplitudou plastické deformace. Růst trhlin byl studován na vrubovaných vzorcích. Oblast vrubu byla mechanicky a elektrolyticky leštěna. Iniciované trhliny byly pozorovány v rastrovacím elektronovém mikroskopu. Růst trhlin byl sledován pomocí mikroskopu QUESTAR s dlouhou ohniskovou vzdáleností,který byl spojen s vysokorozlišovací kamerou. Kinetika trhlin byla sledována v režimu konstantní amplitudy plastické deformace. Byly použity dvě koncepce pro analýzzu růstu trhlin. Predikce únavové životnosti z měření rychlostí trhlin byla srovnána s predikcí podle Manson-Coffinova zákona a byly nalezeny relace mezi parametry vystupujícími v obou zákonech.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA106%2F01%2F0376" target="_blank" >GA106/01/0376: Effect of cycle asymmetry on short crack growth and fatigue life in advanced structural materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fatigue and Fracture of Engineering Materials and Structures
ISSN
8756-758X
e-ISSN
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Volume of the periodical
28 2005
Issue of the periodical within the volume
10
Country of publishing house
GB - UNITED KINGDOM
Number of pages
23
Pages from-to
923-935
UT code for WoS article
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EID of the result in the Scopus database
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