| Texto completo | |
| Autor(es): |
Pilz, C. B.
;
Pinto, R. D. A.
;
Silva, R. A. G.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Thermochimica Acta; v. 752, p. 11-pg., 2025-07-22. |
| Resumo | |
It is known that CuAlMn-based alloys are important systems both from a scientific point of view because of the possibility of various phase transitions, magnetic effects, and interesting mechanical properties, and from a technological point of view because of the emergence of the shape memory effect. These alloys are quite susceptible to modifications related to the heat treatments and, therefore, in this work, the aging effects produced in CuAlMnAgZr alloys with different Zr content were investigated after aging at 473 and 673 K for different times. The analyzes were carried out using differential scanning calorimetry, optical microscopy, scanning electron microscopy, energy dispersion X-ray spectroscopy, and X-ray diffraction. Obtained results pointed out that the presence of Zr accelerates the martensitic and bainitic phase decomposition in the analyzed alloys, makes the T3-Cu3Mn2Al phase an intermediate in the phase evolution process on aging, but it does not modify the reaction sequence observed in the Cu-9Al-10Mn-3Ag alloy. (AU) | |
| Processo FAPESP: | 22/04262-9 - Desenvolvimento e caracterização físico-química de ligas multicomponentes |
| Beneficiário: | Ricardo Alexandre Galdino da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |