Phase stability in multicomponent alloys

• Grant number: 19/06717-0
• Support type: Regular Research Grants
• Duration: June 01, 2019 - November 30, 2021
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal researcher: Ricardo Alexandre Galdino da Silva
• Grantee: Ricardo Alexandre Galdino da Silva
• Home Institution: Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF). Universidade Federal de São Paulo (UNIFESP). Campus Diadema. Diadema , SP, Brazil

Abstract

In this project intend to study the phase stability and the microstructural evolution of the Cu-9%Al-10%Mn-3%Ag-x%Zr alloys (wt.%) and FeNiCuMnTiSn high-entropy alloys using scanning differential calorimetry (DSC), differential thermal analysis (DTA), thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy, optical microscopy, X-ray dispersive energy spectroscopy, X-ray diffraction patterns, microhardness change with quenching temperature and aging time, magnetization change with temperature and applied field and stress-strain measurements. The results obtained will provide information on phase transitions and its stability ranges in studied alloys, on effects of Zr and Cu variations in the thermal, mechanical and magnetic behavior of the alloys. These materials may be utilized for development of thermomagnetic motors for applying in conversion energy. (AU)

Scientific publications

(11)

(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)

DE SOUZA, JULIANA SARANGO; DE OLIVEIRA, MARA CRISTINA LOPES; ANTUNES, RENATO ALTOBELLI; DA SILVA, RICARDO ALEXANDRE GALDINO. Effects of Sn, Gd, and Mn additions on the surface chemistry and electrochemical behavior of CuAl-based alloys in sodium chloride solution. Applied Surface Science, v. 573, JAN 30 2022. Web of Science Citations: 0.

FERREIRA, R. O.; SILVA, L. S.; SILVA, R. A. G. Thermal behavior of as-annealed CuAlMnAgZr alloys. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 146, n. 2, p. 595-600, OCT 2021. Web of Science Citations: 0.

PINTO, R. D. A.; FERREIRA, L. D. R.; SILVA, R. A. G. Effects of Interactions Among Alloying Elements on the Microstructure, Phase Transitions, and Electrical Resistivity of the Cu81Al19 Alloy. METALS AND MATERIALS INTERNATIONAL, SEP 2021. Web of Science Citations: 0.

OLIVEIRA, A. B.; PEIXOTO, E. B.; DUQUE, J. G. S.; SILVA, L. S.; SILVA, R. A. G. Bainite precipitation in a Cu-Al-Mn-Gd shape memory alloy. MATERIALIA, v. 16, MAY 2021. Web of Science Citations: 0.

PAGANOTTI, A.; BESSA, C. V. X.; SILVA, C. C. S.; PEIXOTO, E. B.; DUQUE, J. G. S.; SILVA, R. A. G. Effect of the Ni content on the thermal and magnetic properties of Fe-Ni-Co alloys. Materials Chemistry and Physics, v. 261, MAR 1 2021. Web of Science Citations: 0.

SOUZA, J. S.; SILVA, R. A. G. Microstructure Changes in Sn- or Gd-Modified Cu-11%Al-10%Mn Alloy. METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS, FEB 2021. Web of Science Citations: 0.

SILVA, L. S.; SILVA, R. A. G. Alloys-by-design: Role of atomic properties on the phase equilibria of CuAlMn-based alloys. MATERIALS CHARACTERIZATION, v. 163, MAY 2020. Web of Science Citations: 0.

PILZ, C. B.; MATSUMURA, E. L.; PAGANOTTI, A.; CORNEJO, D. R.; SILVA, R. A. G. Microstructure and phase stability of CuAlMnAgZr multicomponent alloys. Materials Chemistry and Physics, v. 241, FEB 1 2020. Web of Science Citations: 0.

SOUZA, J. S.; SILVA, R. A. G. Microstructure Evolution and Phase Transitions of the Annealed Cu-11%Al Alloy with Sn and Gd Additions. METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS, v. 8, n. 6, p. 782-794, DEC 2019. Web of Science Citations: 1.

PAGANOTTI, ANDRE; BESSA, C. V. X.; FERREIRA, L. D. R.; GAMA, S.; SILVA, R. A. G. Annealing effect on thermal, mechanical and magnetic properties of Fe-Ni-Co alloys. Journal of Alloys and Compounds, v. 811, NOV 30 2019. Web of Science Citations: 0.

PAGANOTTI, A.; BESSA, C. V. X.; SILVA, L. S.; SILVA, R. A. G. Metallic sample preparation for phase transformation analysis. METHODSX, v. 6, p. 2348-2366, 2019. Web of Science Citations: 0.