Actual cryogenic space tank aluminium technology uses preferably AA2219 because of its high strength and fracture toughness . The aluminium-lithium alloy AA2195 permits weight saving by still higher strength and lower material density, but it charges slightly lower fracture toughness and higher material processing effort. The paper describes method and results of tensile testing and surface-crack fracture toughness testing of flat and spinformed AA2195 tank material under room and LHe temperature conditions. In order to reduce cost and material for surface crack tensile (SCT) testing, an altenative method besides the standards is analyzed and verified: the surface crack bending (SCB) test. Operations and cost impacts as well as SCB and SCT test results are compared.


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    Title :

    Cryogenic fracture toughness testing of aluminium 2195 surface cracks


    Additional title:

    Kältetechnische Rißbeständigkeitsprüfung von Oberflächenrissen in Aluminium 2195


    Contributors:


    Publication date :

    1994


    Size :

    6 Seiten, 9 Bilder, 4 Tabellen, 8 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Cryogenic Fracture Toughness Testing of Aluminium 2195 Surface Cracks

    Ernsberger, K. / Sperlich, E. / European Space Agency et al. | British Library Conference Proceedings | 1994



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    DataCite | 1887


    Scanning Auger Analysis of Weld Hot Cracks in Al-Li Alloy 2195

    Thompson, R. G. / Boutwell, B. A. / Minerals, Metals and Materials Society; Structural Materials Division; Non-ferrous Metals Committee | British Library Conference Proceedings | 1995


    Fracture toughness testing

    Srawley, John E. / Brown, William F. | TIBKAT | 1965