Study on Effect of EAFD Particulate Reinforcement in AA7075 Aluminum Matrix Composites

AUTOR(ES)

Alves, Elizeth Oliveira, Amaro, Daniel Ricardo Araújo, Silva, Enéas Carlos de Oliveira, Araújo Filho, Oscar Olimpio de, Alves, Kleber Gonçalves Bezerra

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

13/09/2018

RESUMO

Eletric arc furnace dust is dangerous solid waste that is generated in steel manufacturing processes. The utilization of the dust from these industries avoids disposing it into industrial waste landfills and saves costs. In this study, an attempt has been made to fabricate aluminum matrix composites reinforced with EAFD particulate, throught the conventional powder metallurgy technique. Al-5%EAFD proposed was then compared to the AA7075 alloy, manufactured under the same conditions. According to the results obtained, the addition of EAFD into aluminum matrix resulted in increased microhardness values and had significant contributuion to improve Storage modulus compared with the base metal. The reinforcement particle was uniformly dispersed into the matrix and intermetallic phases were not observed in the content of waste blended into the composite.

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