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Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components

Duplex is the most commonly used stainless steels for offshore applications. It consists of ferritic and austenitic lattice structures which deliver both strength and ductility. It combines the basic toughness of the more common austenitic stainless steels with the higher strength and improved co...

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Main Author: Ahmad, Muhd Amirulnizam
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2004
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/7716/1/2004%20-%20Study%20on%20Effects%20of%20Surface%20Roughness%20Variations%20on%20Corrosion%20Resistance%20of%20Metal%20Componen.pdf
http://utpedia.utp.edu.my/7716/
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spelling my-utp-utpedia.77162017-01-25T09:46:58Z http://utpedia.utp.edu.my/7716/ Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components Ahmad, Muhd Amirulnizam TJ Mechanical engineering and machinery Duplex is the most commonly used stainless steels for offshore applications. It consists of ferritic and austenitic lattice structures which deliver both strength and ductility. It combines the basic toughness of the more common austenitic stainless steels with the higher strength and improved corrosion resistance of ferritic steels. Duplex has made most significant contribution to fight against corrosion offshore. These have often been adopted on offshore structures in preference to carbon steel or other stainless steels. The outer surface of offshore metal components is widely exposed to the corrosion. Marine environment is the most aggressive environment for corrosion activities to take place. The dominant factors of marine environment are considered by extreme temperatures, humidity, and air contaminants. The objective of this project is to study correlation between surface roughnesses of metals with its corrosion resistance behavior. The methodology consists of preparation of specimens, surface roughness measurement by using surface profiler, and corrosion testing in the corrosion chamber by applying salt spray test ASTM B 117 standard which is the most practical laboratory corrosion test to accelerate the corrodibility of the metals. The outcomes of the testing indicate duplex which has best surface finishing is not affected by corrosion activities. Duplex with the surface roughness values less than 1.OOum have the best corrosion resistance and preferable compared to same metal which have greater values of Ra. The lower the value of Ra, thus it may sustain failures of corrosion in longer periods. Universiti Teknologi Petronas 2004-06 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7716/1/2004%20-%20Study%20on%20Effects%20of%20Surface%20Roughness%20Variations%20on%20Corrosion%20Resistance%20of%20Metal%20Componen.pdf Ahmad, Muhd Amirulnizam (2004) Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Ahmad, Muhd Amirulnizam
Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
description Duplex is the most commonly used stainless steels for offshore applications. It consists of ferritic and austenitic lattice structures which deliver both strength and ductility. It combines the basic toughness of the more common austenitic stainless steels with the higher strength and improved corrosion resistance of ferritic steels. Duplex has made most significant contribution to fight against corrosion offshore. These have often been adopted on offshore structures in preference to carbon steel or other stainless steels. The outer surface of offshore metal components is widely exposed to the corrosion. Marine environment is the most aggressive environment for corrosion activities to take place. The dominant factors of marine environment are considered by extreme temperatures, humidity, and air contaminants. The objective of this project is to study correlation between surface roughnesses of metals with its corrosion resistance behavior. The methodology consists of preparation of specimens, surface roughness measurement by using surface profiler, and corrosion testing in the corrosion chamber by applying salt spray test ASTM B 117 standard which is the most practical laboratory corrosion test to accelerate the corrodibility of the metals. The outcomes of the testing indicate duplex which has best surface finishing is not affected by corrosion activities. Duplex with the surface roughness values less than 1.OOum have the best corrosion resistance and preferable compared to same metal which have greater values of Ra. The lower the value of Ra, thus it may sustain failures of corrosion in longer periods.
format Final Year Project
author Ahmad, Muhd Amirulnizam
author_facet Ahmad, Muhd Amirulnizam
author_sort Ahmad, Muhd Amirulnizam
title Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
title_short Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
title_full Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
title_fullStr Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
title_full_unstemmed Study on Effects of Surface Roughness Variations on Corrosion Resistance of Metal Components
title_sort study on effects of surface roughness variations on corrosion resistance of metal components
publisher Universiti Teknologi Petronas
publishDate 2004
url http://utpedia.utp.edu.my/7716/1/2004%20-%20Study%20on%20Effects%20of%20Surface%20Roughness%20Variations%20on%20Corrosion%20Resistance%20of%20Metal%20Componen.pdf
http://utpedia.utp.edu.my/7716/
_version_ 1739831500022480896
score 13.211869

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