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  • The paper presents the results of research focused on assessment of the influence of loading cycle asymmetry on fatigue limit values. For tests two heats of unalloyed nodular cast iron were used. Test bars made of keel blocks were heat treated in salt bathes (austenitization at 900oC during 1 hour, isothermal transformation at 380 and 400oC) and loaded at symmetrical, repeating and pulsating loading cycles at room temperature. Evaluation of fatigue properties was based on the determination of S-N curves in high-cycle region including the fatigue limit assessment for 10*7 cycles to fracture. Fatigue and static tests were completed by metallographic and quantitative phase analysis. Most important result obtained from the presented study is that the dependence of stress amplitude on mean stress cannot be approached by the linear relation but by general power law with eyponent lower than 1 (i. e. the Haigh diagram has convex shape).
  • The paper presents the results of research focused on assessment of the influence of loading cycle asymmetry on fatigue limit values. For tests two heats of unalloyed nodular cast iron were used. Test bars made of keel blocks were heat treated in salt bathes (austenitization at 900oC during 1 hour, isothermal transformation at 380 and 400oC) and loaded at symmetrical, repeating and pulsating loading cycles at room temperature. Evaluation of fatigue properties was based on the determination of S-N curves in high-cycle region including the fatigue limit assessment for 10*7 cycles to fracture. Fatigue and static tests were completed by metallographic and quantitative phase analysis. Most important result obtained from the presented study is that the dependence of stress amplitude on mean stress cannot be approached by the linear relation but by general power law with eyponent lower than 1 (i. e. the Haigh diagram has convex shape). (en)
Title
  • The influence of Mean Stress on Fatigue Properties of ADI
  • The influence of Mean Stress on Fatigue Properties of ADI (en)
skos:prefLabel
  • The influence of Mean Stress on Fatigue Properties of ADI
  • The influence of Mean Stress on Fatigue Properties of ADI (en)
skos:notation
  • RIV/00216305:26210/08:PU78175!RIV10-GA0-26210___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA106/03/1265)
http://linked.open...iv/cisloPeriodika
  • 5
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
  • 372177
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26210/08:PU78175
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Austempered ductile iron, Fatigue properties, Loading cycle asymmetry, Mean stress Haigh diagram, Smith diagram (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [66F45AEFAE81]
http://linked.open...i/riv/nazevZdroje
  • Materials Science Forum
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
  • 567-568
http://linked.open...iv/tvurceVysledku
  • Hrubý, Vojtěch
  • Kohout, Jan
  • Věchet, Stanislav
  • Hanzlíková, Klára
issn
  • 0255-5476
number of pages
http://localhost/t...ganizacniJednotka
  • 26210
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