Cathodic Disbondment of Nano Ceramic Coating

Corrosion prevention method for underground gas pipeline is commonly protected by external coating and cathodic protection. The consequence of excessive cathodic protection potential can cause the coating disbond with that compromise the integrity of pipeline and mechanical damage. The possibility...

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Main Author: Wan Mohd Nasir, Wan Mohamad Hafiz
Format: Final Year Project
Language: English
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-utpedia.20111 /
Published: IRC 2018
Online Access: http://utpedia.utp.edu.my/20111/1/Dissertation_Wan%20Mohamad%20Hafiz_20633.pdf
http://utpedia.utp.edu.my/20111/
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spelling utp-utpedia.201112019-12-20T16:14:28Z http://utpedia.utp.edu.my/20111/ Cathodic Disbondment of Nano Ceramic Coating Wan Mohd Nasir, Wan Mohamad Hafiz Corrosion prevention method for underground gas pipeline is commonly protected by external coating and cathodic protection. The consequence of excessive cathodic protection potential can cause the coating disbond with that compromise the integrity of pipeline and mechanical damage. The possibility of utilising robust nano ceramic coating for the underground coating and resist cathodic disbondment were not well studied. Therefore, the objectives of this project are to assess the performance of nano ceramic coating compare to conventional coating based on physical testing of pencil hardness testing and cathodic disbondment testing and to evaluate the degradation of the nano ceramic coating compare to the conventional coating based on cathodic disbondment testing comply to ASTM G8: Standard Test Methods for Cathodic Disbonding of Pipeline Coatings. The samples are tested with different applied potential of -800 mV, -1000 mV and -1500 mV in 3.5% of NaCl solution for 720 hours (30 days). After the experiment been done, several evaluations are made to validate the coatings performance such as corrosion observation, assessment degree of coating blistering, the dry film thickness after testing and the disbondment of the coating itself. By the end of the experiment, nano ceramic coating degrade more than conventional coating because the quality of colour pigment and resin that been use in nano ceramic is low quality compare to conventional coating. It is recommended to use carbon steel samples with the same thickness and coat the samples with same dry film thickness at the beginning of the experiment. IRC 2018-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/20111/1/Dissertation_Wan%20Mohamad%20Hafiz_20633.pdf Wan Mohd Nasir, Wan Mohamad Hafiz (2018) Cathodic Disbondment of Nano Ceramic Coating. IRC, Universiti Teknologi PETRONAS. (Submitted)
institution Universiti Teknologi Petronas
collection UTPedia
language English
description Corrosion prevention method for underground gas pipeline is commonly protected by external coating and cathodic protection. The consequence of excessive cathodic protection potential can cause the coating disbond with that compromise the integrity of pipeline and mechanical damage. The possibility of utilising robust nano ceramic coating for the underground coating and resist cathodic disbondment were not well studied. Therefore, the objectives of this project are to assess the performance of nano ceramic coating compare to conventional coating based on physical testing of pencil hardness testing and cathodic disbondment testing and to evaluate the degradation of the nano ceramic coating compare to the conventional coating based on cathodic disbondment testing comply to ASTM G8: Standard Test Methods for Cathodic Disbonding of Pipeline Coatings. The samples are tested with different applied potential of -800 mV, -1000 mV and -1500 mV in 3.5% of NaCl solution for 720 hours (30 days). After the experiment been done, several evaluations are made to validate the coatings performance such as corrosion observation, assessment degree of coating blistering, the dry film thickness after testing and the disbondment of the coating itself. By the end of the experiment, nano ceramic coating degrade more than conventional coating because the quality of colour pigment and resin that been use in nano ceramic is low quality compare to conventional coating. It is recommended to use carbon steel samples with the same thickness and coat the samples with same dry film thickness at the beginning of the experiment.
format Final Year Project
author Wan Mohd Nasir, Wan Mohamad Hafiz
spellingShingle Wan Mohd Nasir, Wan Mohamad Hafiz
Cathodic Disbondment of Nano Ceramic Coating
author_sort Wan Mohd Nasir, Wan Mohamad Hafiz
title Cathodic Disbondment of Nano Ceramic Coating
title_short Cathodic Disbondment of Nano Ceramic Coating
title_full Cathodic Disbondment of Nano Ceramic Coating
title_fullStr Cathodic Disbondment of Nano Ceramic Coating
title_full_unstemmed Cathodic Disbondment of Nano Ceramic Coating
title_sort cathodic disbondment of nano ceramic coating
publisher IRC
publishDate 2018
url http://utpedia.utp.edu.my/20111/1/Dissertation_Wan%20Mohamad%20Hafiz_20633.pdf
http://utpedia.utp.edu.my/20111/
_version_ 1741195579301560320
score 11.62408

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