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Title: Completeness of beta-phase decomposition reaction in Cu-Al-Ag alloys
Authors: Silva, R. A. G. [UNIFESP]
Machado, E. S.
Adorno, A. T.
Magdalena, A. G.
Carvalho, T. M.
Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Sergipe (UFS)
Keywords: Alloys
Phase transitions
Thermal behavior
beta-phase decomposition
Issue Date: 1-Aug-2012
Publisher: Springer
Citation: Journal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 109, n. 2, p. 927-931, 2012.
Abstract: The completeness of beta-phase decomposition reaction in the Cu-11wt%Al-xwt%Ag alloys (x = 0, 1, 2, and 3) was studied using differential scanning calorimetry (DSC), X-ray diffractometry (XRD), and optical microscopy (OM). the results indicated that beta-phase transformations are highly dependent on cooling rate and on the presence of Ag. On slow cooling, the silver presence prevents the beta- and beta(1)-phase decomposition; thus, inducing the martensitic phase formation. After rapid cooling, a new thermal event is observed and the reverse martensitic transformation is shifted to lower temperatures.
ISSN: 1388-6150
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Appears in Collections:Artigo

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