|
| VASCONCELOS,ANGELA J.; KIKUCHI,RAFAEL H.; BARROS,ANDRÉ S.; COSTA,THIAGO A.; DIAS,MARCELINO; MOREIRA,ANTONIO L.; SILVA,ADRINA P.; ROCHA,OTÁVIO L.. |
| An experimental study has been carried out to evaluate the microstructural and microhardness evolution on the directionally solidified binary Al-Cu and multicomponent Al-Cu-Si alloys and the influence of Si alloying. For this purpose specimens of Al-6wt.%Cu and Al-6wt.%Cu-8wt.%Si alloys were prepared and directionally solidified under transient conditions of heat extraction. A water-cooled horizontal directional solidification device was applied. A comprehensive characterization is performed including experimental dendrite tip growth rates (VL) and cooling rates (TR) by measuring Vickers microhardness (HV), optical microscopy and scanning electron microscopy with microanalysis performed by energy dispersive spectrometry (SEM-EDS). The results show, for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solidification; Metals and alloys; Electron microscopy; Hardness. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301099 |
