Martensite aging kinetics in the Cu-10 wt.%Al and Cu-10 wt.%Al-10 wt.%Ag alloys
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2008-02-01
Autores
Adorno, A. T. [UNESP]
Silva, R. A G [UNESP]
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Resumo
The martensite aging kinetics in the Cu-10 wt.%Al and Cu-10 wt.%Al-10 wt.%Ag alloys was studied using microhardness measurements, classical differential thermal analysis (DTA), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and in-situ high-temperature X-ray diffractometry (XRD). The results for the Cu-10%Al alloy indicated a process dominated by the martensite ordering assisted by migration of quenched-in vacancies and followed by the consumption of the α phase. For the Cu-10%Al-10%Ag alloy the dominant process is the consumption of the α phase associated with a decrease in the ordering degree of the martensitic phase. © 2007 Springer Science+Business Media, LLC.
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Differential thermal analysis, Energy dispersive X ray analysis, Microhardness, Scanning electron microscopy, Silver alloys, Dominant process, Martensite aging kinetics, Martensitic phase, Martensite
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Journal of Materials Science, v. 43, n. 3, p. 1087-1093, 2008.