Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions

Autor(es)

Silva, R. A. G. ^[1] ; Paganotti, A. ^[1] ; Gama, S. ^[1] ; Adorno, A. T. ^[2] ; Carvalho, T. M. ^[2] ; Santos, C. M. A. ^[2]

Afiliação do(s) autor(es)

^[1] UNIFESP, Dept Ciencias Exatas & Terra, Diadema, SP - Brazil

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

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS CHARACTERIZATION; v. 75, p. 194-199, JAN 2013.
• Citações Web of Science: 12

Resumo

The investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al, Cu-11%Al-3%Ag, Cu-11%Al-10%Mn and Cu-11%Al-10%Mn-3%Ag alloys was made using microhardness measurements, differential scanning calorimetry, X-ray diffractometry, scanning electron microscopy, energy dispersion X-ray spectroscopy and magnetic moment change with applied field measurement. The results indicated that the Mn addition changes the phase stability range, the microhardness values and makes undetectable the eutectoid reaction in annealed Cu-11%Al and Cu-11%Al-3%Ag alloys while the presence of Ag does not modify the phase transformation sequence neither microhardness values of the annealed Cu-11%Al and Cu-11%Al-10%Mn alloys, but it increases the magnetic moment of this latter at about 2.7 times and decreases the rates of eutectoid and peritectoid reactions of the former. (C) 2012 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 11/11041-4 - Estudo do comportamento térmico, mecânico e magnético de uma liga quaternária de Cu-Al-Mn-Ag
• Beneficiário: Ricardo Alexandre Galdino da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores