TY - CONF A1 - Nagelschmidt, Sven A1 - Herbrich, Uwe A1 - Probst, Ulrich A1 - Wolff, Dietmar ED - Van Breugel, K. ED - Koenders, E.A.B. T1 - Evaluation of test results with regard to ageing mechanisms of metal seals in casks for dry storage of spent nuclear fuel T2 - AMS 14 - Ageing of materials & structures - Proceedings of the 1st ageing of materials & structures 2014 conference N2 - Metal seals are widely used for extreme applications, e.g. in dual-purpose casks for dry interim storage of spent nuclear fuel in Germany. Due to the fact that interim storage must be safe at least for the approved period of 40 years there is a major interest to investigate the long-term behaviour and ageing mechanisms of metal seals. Experimental analyses indicate a time and temperature dependency of seal characteristics. This dependency was researched with a time- and temperature parameterization based up on Larson-Miller. The paper describes the derivation of the material parameter C from test results and the applicability of the Larson-Miller-Relationship for those metal seals in principle. Overall a constant material parameter C was not. Nevertheless, an approach comparable to the Larson-Miller-Parameter was developed. T2 - 1st Ageing of materials & structures 2014 conference CY - Delft, The Netherlands DA - 26.05.2014 KW - Metal seal KW - Ageing KW - Larson-Miller-Parameter KW - Aluminium KW - Silver KW - Larson and Miller relationship KW - Casks KW - Spent fuel PY - 2014 SN - 978-94-6186-313-3 SP - 126 EP - 133 AN - OPUS4-30821 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -