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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 9 (1978), S. 359-366 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Effects of Specimen Size and the Presence of Notches on the Stress Rupture Properties of Round Bars Representative of Structural ComponentsStress rupture tests at 550 °C on smooth and notched specimens of 21 CrMoV 57 steel in three heat-treatment conditions have been carried out for test times of up to 35000 hours. A wide range of notch parameters for specimens of between 8 and 20 mm notch diameter has been investigated, the notch shapes (60°-V-notch, shoulder fillet and cylindrical T-head) being representative of those found in structural components. The effects of material properties, notch geometry and specimen diameter on the stress rupture strength have been determined.
    Notes: An glatten und gekerbten Rundstäben des Stahls 21 CrMoV 57 in drei Wärmebehandlungszuständen wurden Zeitstandversuche bei 550 °C mit Versuchszeiten bis zu 35 000 h durchgeführt. Es wurden Kerbformen bauteilähnlicher Art untersucht (60°-V-Kerbe, Absatz, Schulterkopf), deren Kerbparameter in weiten Grenzen variiert wurden bei Kerbdurchmessern von 8 bis 20 mm. Die werkstoff-, form- und größenabhängigen Veränderungen der Zeitstandkerbfestigkeit wurden ermittelt.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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