Reação de precipitação de Ag na liga Cu-8%Al-6%Ag

Ag precipitation reaction in the Cu-8wt.%Al-6wt.%Ag alloys was studied using microhardness measurements with temperature and ageing time, X-ray diffraction patterns (DRX), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The results obtained showed that the mechanism o...

ver descrição completa

Detalhes bibliográficos
Autores: Silva, R. A.G. [UNESP], Magdalena, A. G. [UNESP], Carvalho, T. M. [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:portugués
OAI Identifier:oai:repositorio.unesp.br:11449/222665
Acesso em linha:http://dx.doi.org/10.26850/1678-4618EQJ.V33.1.2008.P63-70
http://hdl.handle.net/11449/222665
Access Level:acceso abierto
Palavra-chave:Ag additions
Cu based alloys
Microhardness
Descrição
Resumo:Ag precipitation reaction in the Cu-8wt.%Al-6wt.%Ag alloys was studied using microhardness measurements with temperature and ageing time, X-ray diffraction patterns (DRX), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The results obtained showed that the mechanism of Ag precipitation reaction is an Ag diffusion controlled process and reaction rate reaches a maximum at about 500ºC.