Effects of Gd addition on the thermal and microstructural behaviors of the as-cast Cu-9 % Al and Cu-9 % Al-10 % Mn alloys

Autor(es)

Brazolin, G. F. ; Canbay, C. Aksu ; Ozgen, S. ; Oliveira, A. B. ; Silva, R. A. G.

• Tipo de documento: Artigo Científico
• Fonte: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING; v. 122, n. 10 OCT 2016.
• Citações Web of Science: 1

Resumo

The effects of Gd addition on the thermal and microstructural behaviors of as-cast samples of the Cu-9 % Al and Cu-9 % Al-10 % Mn alloys were investigated using different experimental techniques. The results showed that the addition of Gd does not significantly interfere in the melting and solidification temperatures of the Cu-9 % Al alloy, but it decreases the stability of beta' martensitic phase during re-heating of sample, while the presence of Mn slows the beta(A2) phase decomposition during cooling and widens its stability field. The Cu-9 % Al-10 % Mn-3 % Gd alloy has characteristics close to those observed for the Cu-9 % Al-10 % Mn alloy, but the presence of Mn increases the solubility of Gd and induces the formation of Gd-rich precipitates with average size of 200 nm. (AU)

• Processo FAPESP: 15/18996-0 - Estudo dos efeitos das adições de Gd e Mn sobre as propriedades térmicas, magnéticas e mecânicas da liga Cu-9%Al
• Beneficiário: Ricardo Alexandre Galdino da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular