Corrosion behaviour of aluminium alloy in palm oil methyl ester (B100)
The aim of this study is to determine the corrosion effect of palm oil methyl ester (POME) on aluminium alloy 5083 (AA5083). The static immersion test was carried out at 60°C for 68 days according to ASTM G-31-72. The corrosion analysis was done by using weight loss method and electrochemical tes...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Teknologi Malaysia
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/25562/ http://irep.iium.edu.my/25562/ http://irep.iium.edu.my/25562/1/JT%28S%26K%29_SE_NO._58_OGOS_2012_WAN_NIK_12.pdf |
| Summary: | The aim of this study is to determine the corrosion effect of palm oil methyl ester (POME) on
aluminium alloy 5083 (AA5083). The static immersion test was carried out at 60°C for 68 days
according to ASTM G-31-72. The corrosion analysis was done by using weight loss method and
electrochemical test. The result from weight loss method shows the decreasing in weight loss of
AA5083 which signifies the ability of POME to reduce corrosion rate. The electrochemical test shows
the decreasing in polarization resistance, Rp, while the corrosion current densities, Icorr, increase. The
corrosion rate reduces from 2.250mpy to 0.1946mpy. The low concentration of fatty acid C18:2 and
high anti oxidant element contributes to the reduction of corrosion rate of AA5083 in POME.
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