5 Werkstofftechnik
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Erscheinungsjahr
- 2018 (3) (entfernen)
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- Englisch (3) (entfernen)
Referierte Publikation
- nein (3)
Schlagworte
- Coarsening (2)
- Degradation (2)
- Alloy 2618A (1)
- Aluminium (1)
- Creep (1)
- Dark-field transmission electron microscopy (1)
- Dark-field transmission electron microscopy (DFTEM) (1)
- Long-term behavior (1)
- Metal seal (1)
- S-phase (1)
Organisationseinheit der BAM
- 5.2 Metallische Hochtemperaturwerkstoffe (3) (entfernen)
In Germany spent nuclear fuel (SNF) and high level radioactive waste (HLW) are stored in interim storage containers with double lid systems. Those lids are equipped with metal seals (e.g. Helicoflex®) that ensure the safe enclosure of the inventory. Being licensed for up to 40 years of interim storage the evaluation of the long-term behavior of the seals is necessary, taking into account storage conditions, decay heat and possible mechanical loads.
The influence of heat treatment and creep loading on the microstructure of an Al-Cu-Li alloy was investigated. Especially the formation of different precipitates (T1 and Theta') were characterized and the microstructural changes under different ageing conditions (with and without external strain) were investigated to determine the effect od stress on the ageing process.