About: In situ neutron diffraction study of the low cycle fatigue of the a-y duplex stainless steel     Goto   Sponge   NotDistinct   Permalink

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  • V duplexních nerezových ocelích jsou významná teplotní napětí generována během chlazení z homogenizační teploty vlivem rozdílu koeficientu tepelné roztažnosti u austenitické a feritické fází. Předkládáme výsledky měření rozvoje vnitřního pnutí během pomalého cyklického zatěžování duplexní nerezové oceli SAF 2507. Měřili jsme napěťovou odpověď obou složek na sdílení zatížení mezi austenitickými a feritickými zrny. Shledali jsme, že počáteční tepelná zbytková pnutí rychle relaxovala po začátku cyklického zatěžování. Zatímco počáteční tvrdnutí bylo nalezeno v obou fázích, následné únavové měknutí bylo plně ztotožněno s austenitickou fází. (cs)
  • In duplex stainless steels, significant thermal stresses are generated during the cooling from the homogenization temperature due to different thermal expansion coefficients of the austenitic and ferritic phases. The results of the in situ neutron diffraction examination of the evolution of the internal stresses during the low cycle fatigue in the SAF 2507 duplex stainless steel are reported. Stress response of both constituent components resulting from the load sharing between austenitic and ferritic grains was measured. It was found that the initial thermal residual stresses were relaxed rapidly at the beginning of the cyclic loading. Whereas initial hardening was identified in both phases, the subsequent fatigue softening was fully attributed to the austenitic phase.
  • In duplex stainless steels, significant thermal stresses are generated during the cooling from the homogenization temperature due to different thermal expansion coefficients of the austenitic and ferritic phases. The results of the in situ neutron diffraction examination of the evolution of the internal stresses during the low cycle fatigue in the SAF 2507 duplex stainless steel are reported. Stress response of both constituent components resulting from the load sharing between austenitic and ferritic grains was measured. It was found that the initial thermal residual stresses were relaxed rapidly at the beginning of the cyclic loading. Whereas initial hardening was identified in both phases, the subsequent fatigue softening was fully attributed to the austenitic phase. (en)
Title
  • In situ neutron diffraction study of the low cycle fatigue of the a-y duplex stainless steel
  • Studie pomalého cyklického zatěžování nerezové oceli a-y duplex pomocí difrakce neutronů (cs)
  • In situ neutron diffraction study of the low cycle fatigue of the a-y duplex stainless steel (en)
skos:prefLabel
  • In situ neutron diffraction study of the low cycle fatigue of the a-y duplex stainless steel
  • Studie pomalého cyklického zatěžování nerezové oceli a-y duplex pomocí difrakce neutronů (cs)
  • In situ neutron diffraction study of the low cycle fatigue of the a-y duplex stainless steel (en)
skos:notation
  • RIV/26722445:_____/06:#0000039!RIV08-MSM-26722445
http://linked.open.../vavai/riv/strany
  • 597-599
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM2672244501)
http://linked.open...iv/cisloPeriodika
  • Part 1
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
  • 479127
http://linked.open...ai/riv/idVysledku
  • RIV/26722445:_____/06:#0000039
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Neutron diffraction; Low cycle fatigue; Duplex steel; Residual stress (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [FC813CBF5D0B]
http://linked.open...i/riv/nazevZdroje
  • Physica B: Condensed Matter
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 385-386
http://linked.open...iv/tvurceVysledku
  • Lukáš, Petr
  • Jenčuš, Peter
http://linked.open...n/vavai/riv/zamer
issn
  • 0921-4526
number of pages
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