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Evaluation of Mechanical and Electrical Properties of Squeeze Cast 1xxx Aluminium

Authors: Kolawole MY, Aweda JO, Abdulkareem S

ABSTRACT

The effect of squeeze cast pressure on the mechanical and electrical properties of 1xxx aluminium was experimentally studied. Aluminium (1xxx) metal was melted and poured into a preheated split die at 700±10 oC. Varying values of pressures were applied on the cast using Vega hydraulic press to produce sound cast samples. Mechanical, microstructural and electrical properties of cast products were examined on Monsanto universal tensile testing machine (UTM), Rockwell hardness tester and DC 4 probes wire respectively. The results of the investigations revealed that squeeze cast pressure influenced the microstructure through grain refinement which led to enhancement of the mechanical properties of the metal. Improvement of 41.03 % in hardness at applied pressure of 190 MPa and 200% in tensile strength at applied pressure of 127 MPa were obtained for the squeeze cast metal. There was an increase in electrical conductivity by 18.5 % at 127 MPa applied squeeze cast pressure. Squeeze casting is thus presumed to be a suitable processing route for improving the mechanical and electrical properties of aluminium metal of 1xxx series.


Affiliations: Department of Mechanical Engineering, College of Engineering & Technology, Kwara State University, Malete, Nigeria
Keywords: Aluminium, Squeeze Casting, Mechanical Properties, Electrical Properties, Microstructure
Published date: 2018/12/30

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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