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Mechanical Properties and Microstructures of Locally Produced Aluminium-Bronze Alloy

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DOI: 10.4236/jmmce.2012.1110105    4,397 Downloads   6,190 Views   Citations

ABSTRACT

This work studied the feasibility of producing a dual-phase aluminium bronze alloy and the use of selected treatments to manipulate the mechanical properties of the produced alloy using local techniques, as a potential replacement for con- ventional structural materials, particularly steels. Sand casting was used and was found to be effective based on its ad- vantages of low cost, ease of use and flexibility in the production of a dual-phase aluminium bronze alloy with pre-selected composition of 11% Al content. Cold deformation of 10 and 20% degrees and selected heat treatments were used on the cast alloy to influence its mechanical properties. The selected heat treatments are solution heat treat- ment, normalising, and ageing. The results showed that normalising gave the optimum mix of tested mechanical proper- ties with ultimate tensile strength in the range of 325 MPa, elongation of around 60% and Rockwell hardness values of 46.5 - 63.7 HRc, making this alloy suitable as alternatives to steel in low/medium strength structural applications.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

U. Donatus, J. Omotoyinbo and I. Momoh, "Mechanical Properties and Microstructures of Locally Produced Aluminium-Bronze Alloy," Journal of Minerals and Materials Characterization and Engineering, Vol. 11 No. 10, 2012, pp. 1020-1026. doi: 10.4236/jmmce.2012.1110105.

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