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Effects of Gd and Mn additions on thermal, magnetic and mechanical properties of the Cu-9wt.%Al alloy

Abstract

This project aims to study the effects of the Gd and Mn additions on the thermal, magnetic and mechanical properties of the Cu-9wt.%Al alloy using differential scanning calorimetry (DSC), differential thermal analysis (DTA), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), optical microscopy (OM), energy dispersive X-ray analysis (EDX), X-ray diffractometry (XRD), microhardness changes with temperature and time, magnetization measurements with temperature and applied field, and stress-strain measurements. The results will give information on the phase transitions and its stability intervals in the Cu-9wt.%Al-10wt.%Mn-3wt.%Gd alloy, on the effects of Gd and Mn additions on the thermal, magnetic and mechanical behaviors of the Cu-9wt.%Al alloy, as well as modifications in the alloy microstructure due to the presences of Mn and Gd and on effects of the heat treatments of annealing, quenching and aging on the properties of the alloys. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PEIXOTO, E. B.; MENDONCA, E. C.; MERCENA, S. G.; JESUS, A. C. B.; BARBOSA, C. C. S.; MENESES, C. T.; DUQUE, J. G. S.; SILVA, R. A. G.. Study of the dynamic of crystallization of an amorphous Fe40Ni40P14B6 ribbon through Johnson-Mehl-Avrami model. Journal of Alloys and Compounds, v. 731, p. 1275-1279, . (15/18996-0)
BRAZOLIN, G. F.; CANBAY, C. AKSU; OZGEN, S.; OLIVEIRA, A. B.; SILVA, R. A. G.. Effects of Gd addition on the thermal and microstructural behaviors of the as-cast Cu-9 % Al and Cu-9 % Al-10 % Mn alloys. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, v. 122, n. 10, . (15/18996-0)
BRAZOLIN, G. F.; SILVA, C. C. S.; SILVA, L. S.; SILVA, R. A. G.. Phase transformations in an annealed Cu-9Al-10Mn-3Gd alloy. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 134, n. 3, p. 1405-1412, . (15/18996-0)
PEIXOTO, E. B.; DUQUE, J. G. S.; SILVA, L. S.; SILVA, R. A. G.. The effect of the thermal heating on the magnetic properties of a high permeability amorphous Fe76.5Cu1Nb3Si13.5B6 ribbon. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, . (15/18996-0)
OLIVEIRA, A. B.; SILVA, R. A. G.. Thermomagnetic behavior of an as-quenched Cu-Al-Mn-Gd alloy. Materials Chemistry and Physics, v. 209, p. 112-120, . (15/18996-0)
OLIVEIRA, A. B.; PAGANOTTI, A.; SILVA, R. A. G.. Kinetics of martensite decomposition in a Gd-modified Cu-Al alloy. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v. 135, . (15/18996-0)
PEIXOTO, E. B.; DUQUE, J. G. S.; SILVA, L. S.; SILVA, R. A. G.. The effect of the thermal heating on the magnetic properties of a high permeability amorphous Fe76.5Cu1Nb3Si13.5B6 ribbon. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 147, n. 4, p. 2917-2922, . (15/18996-0)

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