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  • 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...
  • 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... (en)
  • 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. (cs)
Title
  • Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel
  • Růst krátkých trhlin a únavová životnost austeniticko-feritické duplexní oceli (cs)
  • Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel (en)
skos:prefLabel
  • Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel
  • Růst krátkých trhlin a únavová životnost austeniticko-feritické duplexní oceli (cs)
  • Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel (en)
skos:notation
  • RIV/68081723:_____/05:00024832!RIV06-AV0-68081723
http://linked.open.../vavai/riv/strany
  • 923;935
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA106/01/0376), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika
  • 10
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 542539
http://linked.open...ai/riv/idVysledku
  • RIV/68081723:_____/05:00024832
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • crack growth; crack initiation; duplex steel (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [78948BCE312A]
http://linked.open...i/riv/nazevZdroje
  • Fatigue and Fracture of Engineering Materials and Structures
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 28 2005
http://linked.open...iv/tvurceVysledku
  • Polák, Jaroslav
  • Zezulka, Petr
http://linked.open...n/vavai/riv/zamer
issn
  • 8756-758X
number of pages
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