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...

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Bibliographic Details
Authors: Silva, R. A.G. [UNESP], Magdalena, A. G. [UNESP], Carvalho, T. M. [UNESP]
Format: article
Status:Published version
Publication Date:2008
Country:Brasil
Institution:Universidade Estadual Paulista (UNESP)
Repository:Repositório Institucional da UNESP
Language:Portuguese
OAI Identifier:oai:repositorio.unesp.br:11449/222665
Online Access:http://dx.doi.org/10.26850/1678-4618EQJ.V33.1.2008.P63-70
http://hdl.handle.net/11449/222665
Access Level:Open access
Keyword:Ag additions
Cu based alloys
Microhardness
Description
Summary: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.