Thermal behavior of the Cu-22.55 at.%Al alloy with small Ag additions

Autor(es)

Silva, R. A. G. ^[1] ; Adorno, A. T. ^[2] ; Magdalena, A. G. ^[2] ; Carvalho, T. M. ^[2] ; Stipcich, M. ^{[3, 4]} ; Cuniberti, A. ^{[3, 4]} ; Castro, M. L. ^{[3, 4]}

Afiliação do(s) autor(es)

^[1] UFS, Itabaiana, SE - Brazil

^[2] UNESP, Inst Quim, BR-14801970 Araraquara, SP - Brazil

^[3] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF - Argentina

^[4] Univ Nacl Ctr Prov Buenos Aires, Inst Fis Mat Tandil, Fac Ciencias Exactas, RA-7000 Tandil - Argentina

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 103, n. 2, p. 459-463, FEB 2011.
• Citações Web of Science: 5

Resumo

In this study the effect of Ag additions on the thermal behavior of the Cu-22.55 at.%Al alloy was studied using electrical resistivity measurements, in situ X-ray diffractometry, differential scanning calorimetry, and optical microscopy. The results indicated that Ag additions do not change the phase transformations sequence in the studied alloys, but modify its critical temperatures due to a change on entropy of system. It was verified that at the cooling rate of 10 K/min the decomposition of beta phase into (alpha + gamma(1)) is incomplete, but for lower cooling rates than 1.0 K/min this reaction is completed. (AU)

• Processo FAPESP: 06/04718-0 - Estudo da interação Ag-Al e da estabilização da fase martensítica em ligas de Cu-Al com adições de Ag
• Beneficiário: Antonio Tallarico Vicente Adorno
• Modalidade de apoio: Auxílio à Pesquisa - Regular