Effect of double thermal ageing treatment on the mechanical properties of Al–Cu–Mg/3% rice husk ash composite

The effect of double thermal ageing treatment (DTAT) on the hardness, impact and tensile properties of Al–Cu–Mg/rice husk ash composite produced by double stir casting method has been studied. From the results obtained, DTAT samples showed better hardness, impact and tensile properties as compared w...

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Bibliographic Details
Published in:Results in physics 2016, Vol.6, p.342-345
Main Authors: Umaru, O.B., Abdulwahab, M., Tokan, A., Bello, A.M., Umar, H.A.
Format: Article
Language:English
Subjects:
Agro waste
Composite
Hardness
Metal matrix
Reinforcement
Sand mould
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Summary:The effect of double thermal ageing treatment (DTAT) on the hardness, impact and tensile properties of Al–Cu–Mg/rice husk ash composite produced by double stir casting method has been studied. From the results obtained, DTAT samples showed better hardness, impact and tensile properties as compared with the STAT samples. These significant improvements were evidenced in the DTAT for 5h (with a hardness value of 81.3 HRB) and DTAT for 4h with impact strength of 72kJ/m2 and Ultimate tensile strength of 129.797N/mm2 respectively. The Microstructural analysis revealed that more precipitates were formed and more evenly distributed in the DTAT than STAT. It can be deduced that the thermal treatment has improved the mechanical properties of the composite studied under this condition.
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2016.06.009