Aging behavior in Cu-Al-Be shape memory alloy
| Contribuinte(s) |
Universitat de Barcelona |
|---|---|
| Data(s) |
19/04/2012
|
| Resumo |
This article reports positron annihilation spectroscopy and calorimetric measurements of the aging behavior in a Cu¿Al¿Be shape memory alloy. An excess of single vacancies is retained in the alloy as a result of a quench. All vacancies in excess disappear after long aging time, and a migration energy EM = 1.0±0.1 eV for this process has been found to be larger than in other Cu-based shape memory alloys. The good correlation found for the concentration of vacancies and the shift in the martensitic transition temperature demonstrates that, in Cu¿Al¿Be, changes in the transition after a quench are deeply related to the excess of vacancies. |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
American Institute of Physics |
| Direitos |
(c) American Institute of Physics, 1999 info:eu-repo/semantics/openAccess |
| Palavras-Chave | #Transformacions martensítiques #Ciència dels materials #Martensitic transformations #Materials science |
| Tipo |
info:eu-repo/semantics/article |
