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  4. Korrosionsschwingfestigkeit von geschweißtem Walzstahl und Stahlguß-Verbund für Maschinen-, Brücken-, Fahrzeugbau und Meerestechnik
 
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1994
Report
Title

Korrosionsschwingfestigkeit von geschweißtem Walzstahl und Stahlguß-Verbund für Maschinen-, Brücken-, Fahrzeugbau und Meerestechnik

Other Title
Corrosion fatigue of welded joints from rolled structural and cast steels for mechanical, bridge, automotive engineering and marine technology
Abstract
By welding of cast steel intersections between rolled structural steels the welds can be removed to areas of low stresses and so the fatigue life of the structure can be improved significantly. However, for a safe and economic design the knowledge of the fatigue behaviour of weldings between cast and structural steels under corrosion is required. Since such fatigue data was not yet available, the fatigue behaviour of butt welded joints between cast and structural steels having a minimum yield strength of 500 MPa was investigated in artificial sea water under loading spectra which are typical for offshore structures. Tests were performed with a loading ratio of R equals -1 under free corrosion as well as under cathodic protection with a potential of -1080 mV against calomel and a frequency of f equals 10 s high -1. For the random fatigue tests two different loading spectra, the so-called ECSC- and the WASH1-Sequence, were used.
Author(s)
Lipp, K.
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Sonsino, C.M.
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Lachmann, E.
IABG
Corporate Author
Industrieanlagen-Betriebsgesellschaft mbH -IABG-, Ottobrunn
Fraunhofer-Institut für Betriebsfestigkeit -LBF-, Darmstadt
Publisher
Fraunhofer LBF
Publishing Place
Darmstadt
Language
German
Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF  
Keyword(s)
  • cast steel

  • cathodic protection

  • constant amplitude loading

  • fatigue behaviour

  • free corrosion

  • freie Korrosion

  • kathodischer Korrosionsschutz

  • Lebensdauerlinie

  • Schweißverbindung

  • Schwingfestigkeit

  • Stahlguß

  • structural steel

  • variable amplitude loading

  • Walzstahl

  • welded joint

  • Wöhlerlinie

  • Korrosionsbeständigkeit

  • Maschinenbau

  • Brückenbau

  • Fahrzeugbau

  • Meerestechnik

  • Lebensdauer

  • Walzen

  • Einstufenversuch

  • Betriebsbeanspruchung

  • Lebensdauerabschätzung

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