Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy
AUTOR(ES)
Castilho, Amanda Ventura
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
04/04/2019
RESUMO
In this paper, a composition of known high glass-forming ability, Cu42Zr42Al8Ag8 and a novel Cu42Zr42Al8Ag4Sn4, were produced by suction-casting. After rapid solidification of both alloys, X-ray diffraction patterns along with crystallite size estimation by Scherrer equation and scanning electron microscopy images revealed a refined microstructure, composed mainly by AlCu2Zr, CuZr2 and Cu10Zr7 phases. Transmission electron microscopy indicated the presence of small crystalline precipitates in the Cu42Zr42Al8Ag4Sn4 suction-casted sample. Polarization curves showed a higher passivation current in the Sn containing sample, suggesting a decrease in corrosion resistance.
Documentos Relacionados
- Effect of Squeeze Casting on Microhardness and Microstructure of Al-3Cu-xSi Alloy
- Effect of hot pressing variables on the microstructure, relative density and hardness of sterling silver (Ag-Cu alloy) powder compacts
- Effect of Solid Solution Temperature on Microstructure and Corrosion Resistance of CoNiCrMo Alloy
- Efeito da adição de cromo sobre a microestrutura e propriedades termomecânicas em ligas cu-al-be com efeito memória de forma
- Evolution of Microstructure in Al-Si-Cu System Modified with a Transition Element Addition and its Effect on Hardness