The Behaviour of Aluminium Alloy under the Influence of Varying Acidity
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2018 by IJETT Journal|
|Year of Publication : 2018|
|Authors : S.O.Fatukasi, A.D. Adeponle, O.W Awotunde and E.A.Ponle
|DOI : 10.14445/22315381/IJETT-V59P210|
S.O.Fatukasi, A.D. Adeponle, O.W Awotunde and E.A.Ponle"The Behaviour of Aluminium Alloy under the Influence of Varying Acidity", International Journal of Engineering Trends and Technology (IJETT), V59(1),59-62 May 2018. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
The corrosion behaviour of aluminum alloy cast from different source such as; used tower (TA), roofing sheet (RS), motorcycle break pad (MC) and motorcycle piston (MP) in solutions of different pH of 4.2, 7.0 and 8.0 were investigated using PG start 101 potentiostat electrochemical testing machine. The chemical composition test of each of the sample was conducted to ascertain the weight percentage of each of the constituent elements in each aluminum alloy. MC shows highest weight percentage of iron (Fe3+) as 1.128%. In pH of 4.2, MP exhibited lowest corrosion rate of 0.032617 while RS exhibited highest corrosion rate of 0.20169 mmpy. Also 0.0005048 mmpy observed as lowest corrosion rate in pH of 7.0 exhibited by TA while highest corrosion rate of 0.55829 mmpy was observed in pH of 8.0 exhibited by MC. It can be concluded that the weight percentage of iron (Fe3+) and pH has significant effect on corrosion rate. Therefore, MP with lowest corrosion rate of pH 4.2 is recommended for use in acidic environment while TA with lowest corrosion rate in pH of 8 is recommended for use in alkaline environment.
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Aluminum alloy, Corrosion, Acidic, Alkaline, Environment