Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/50114
Título: | Ultrasonic melt processing in the low pressure investment casting of Al alloys |
Autor(es): | Barbosa, J. Puga, Hélder |
Palavras-chave: | Aluminum alloys Investment casting Refinement Ultrasound Low-pressure |
Data: | Jun-2017 |
Editora: | Elsevier |
Revista: | Journal of Materials Processing Technology |
Resumo(s): | AlSi7Mg investment cast test bars were produced using low-pressure die casting and ultrasonically refined during cooling. The microstructure and mechanical properties of the samples at different distances from the acoustic radiator were characterized for 650 degrees C pouring temperature. The combined technique lead to cast samples free from gas porosities and solidification defects, promoted the formation of small alpha-Al globular grains, modified the eutectic silicon, dispersed and decreased the size of intermetallic phases. The alloy mechanical properties were improved, increasing the ultimate tensile strength, yield strength and strain. |
Tipo: | Artigo |
Descrição: | "Available online 24 January 2017" |
URI: | https://hdl.handle.net/1822/50114 |
DOI: | 10.1016/j.jmatprotec.2017.01.031 |
ISSN: | 0924-0136 |
Versão da editora: | www.elsevier.com/locate/jmatprotec |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DEM - Artigos em revistas de circulação internacional com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Ultrasonic melt processing in the low pressure investment casting of Al alloys.pdf | 946,88 kB | Adobe PDF | Ver/Abrir |