Pitting corrosion behaviour of aluminium alloys

The present work is aimed to investigate the effect of temperature and concentration of solution on the pitting corrosion of AA6061 – T6 aluminium alloy and study its electrochemical behaviour and physical behaviour in sodium chloride (NaCl) solution using the polarization technique. The experiments...

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Main Author: Leon, Mei Chen
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/8646/
http://umpir.ump.edu.my/id/eprint/8646/
http://umpir.ump.edu.my/id/eprint/8646/1/cd8128.pdf
id ump-8646
recordtype eprints
spelling ump-86462015-11-02T01:48:30Z http://umpir.ump.edu.my/id/eprint/8646/ Pitting corrosion behaviour of aluminium alloys Leon, Mei Chen TA Engineering (General). Civil engineering (General) The present work is aimed to investigate the effect of temperature and concentration of solution on the pitting corrosion of AA6061 – T6 aluminium alloy and study its electrochemical behaviour and physical behaviour in sodium chloride (NaCl) solution using the polarization technique. The experiments were carried out under static conditions at different NaCl concentration solutions (3.5, 4.5 and 5.5) wt% and different temperatures (25, 35, 45, 55 and 65) oC. This experiment started with different NaCl concentration solutions at room temperature condition by using potentiostat/galvometer instrument. Water bath machine had been used to control the solution temperature in this experiment. Natural pitting corrosion experiment had been tested for 2 months in different NaCl concentration solutions. Comparison between two methods which were tested in different concentration was discussed. It was found experimentally that increasing in NaCl concentration and temperatures lead to decrease in the breakdown potential (E corr) and increase in corrosion rate of as-received materials. Based on the results obtained, the corrosion rate increased from 0.1529 mmpy to 0.3650 mmpy for the electrochemical experiment and 0.2517 mmpy to 0.4692 mmpy for natural pitting when concentration of the solutions increased from 3.5 wt% to 5.5 wt%. The influence of solutions’ temperature (25 – 65) oC on the pitting corrosion of AA6061-T6, showed the changes of the corrosion rate from 0.1529 mmpy to 1.205mmpy. In conclusion, the highest corrosion rate obtained at the highest solution temperature. The increased in concentration and temperature lead to the increasing of corrosion rate of AA6061-T6. 2013-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8646/1/cd8128.pdf Leon, Mei Chen (2013) Pitting corrosion behaviour of aluminium alloys. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:83019&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Leon, Mei Chen
Pitting corrosion behaviour of aluminium alloys
description The present work is aimed to investigate the effect of temperature and concentration of solution on the pitting corrosion of AA6061 – T6 aluminium alloy and study its electrochemical behaviour and physical behaviour in sodium chloride (NaCl) solution using the polarization technique. The experiments were carried out under static conditions at different NaCl concentration solutions (3.5, 4.5 and 5.5) wt% and different temperatures (25, 35, 45, 55 and 65) oC. This experiment started with different NaCl concentration solutions at room temperature condition by using potentiostat/galvometer instrument. Water bath machine had been used to control the solution temperature in this experiment. Natural pitting corrosion experiment had been tested for 2 months in different NaCl concentration solutions. Comparison between two methods which were tested in different concentration was discussed. It was found experimentally that increasing in NaCl concentration and temperatures lead to decrease in the breakdown potential (E corr) and increase in corrosion rate of as-received materials. Based on the results obtained, the corrosion rate increased from 0.1529 mmpy to 0.3650 mmpy for the electrochemical experiment and 0.2517 mmpy to 0.4692 mmpy for natural pitting when concentration of the solutions increased from 3.5 wt% to 5.5 wt%. The influence of solutions’ temperature (25 – 65) oC on the pitting corrosion of AA6061-T6, showed the changes of the corrosion rate from 0.1529 mmpy to 1.205mmpy. In conclusion, the highest corrosion rate obtained at the highest solution temperature. The increased in concentration and temperature lead to the increasing of corrosion rate of AA6061-T6.
format Undergraduates Project Papers
author Leon, Mei Chen
author_facet Leon, Mei Chen
author_sort Leon, Mei Chen
title Pitting corrosion behaviour of aluminium alloys
title_short Pitting corrosion behaviour of aluminium alloys
title_full Pitting corrosion behaviour of aluminium alloys
title_fullStr Pitting corrosion behaviour of aluminium alloys
title_full_unstemmed Pitting corrosion behaviour of aluminium alloys
title_sort pitting corrosion behaviour of aluminium alloys
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/8646/
http://umpir.ump.edu.my/id/eprint/8646/
http://umpir.ump.edu.my/id/eprint/8646/1/cd8128.pdf
first_indexed 2023-09-18T22:06:26Z
last_indexed 2023-09-18T22:06:26Z
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