survieillissement
- Domaine
-
- métallurgie
Terme :
- survieillissement n. m.
Traductions
-
anglais
Auteur : Swedish Centre of Technical Terminology,Définition
Ageing at such high temperatures or for so long a time that a precipitated phase tends to become coarser or even to disintegrate.
Note :
The result of overageing is that the property alterationoriginally required becomes greater than intended or reverts to its original state. The purpose of overageing is to balance various properties, such as reducing the resilience to improve the resistance to stress corrosion. Overageing refers especially to the reduction in hardness that occurs after solution heat treatment if the optimal time or temperature is exceeded.
Termes :
- overageing
- overaging États-Unis