%0 Journal Article
%T Predictability of Al-Mn Alloy Exposure Time Based on Its As-Cast Weight and Corrosion Rate in Sea Water Environment
%A Chukwuka Nwoye
%A Simeon Neife
%A Ebere Ameh
%A Awo Nwobasi
%A Ndubuisi Idenyi
%J Journal of Minerals and Materials Characterization and Engineering
%P 307-314
%@ 2327-4085
%D 2013
%I Scientific Research Publishing
%R 10.4236/jmmce.2013.16046
%X This paper presents the predictability of aluminium-manganese alloy exposure time based on its as-cast weight and corrosion rate in sea water environment. The validity of the derived model: ¦Á = 26.67¦Ã + 0.55¦Â £ 0.29 is rooted on the core expression: 0.0375¦Á = ¦Ã + 0.0206¦Â £ 0.0109 where both sides of the expression are correspondingly approximately equal. Statistical analysis of model-predicted and experimentally evaluated exposure time for each value of as-cast weight and alloy corrosion rate considered shows a standard error of 0.0017% & 0.0044% and 0.0140% & 0.0150% respectively. The depths of corrosion penetration (at increasing corrosion rate: 0.0104 - 0.0157 mm/yr) as predicted by derived model and obtained from experiment are 0.7208 ¡Á 10£4 & 1.0123 ¡Á 10£4 mm and 2.5460 ¡Á 10£4 & 1.8240 ¡Á 10£4 mm (at decreasing corrosion rate: 0.0157 - 0.0062 mm/yr) respectively. Deviational analysis indicates that the maxi- mum deviation of the model-predicted alloy exposure time from the corresponding experimental value is less than 10%.
%K Prediction
%K Exposure Time
%K Al-Mn Alloys
%K Sea Water
%K Alloy As-Cast Weight
%K Corrosion Rate
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=40021