Corrosion in less than one year is the pits ! / Valerie Sherbondy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 2 (02/2016)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 33, N° 2 (02/2016) . - p. 15-21 Titre : Corrosion in less than one year is the pits ! Type de document : texte imprimé Auteurs : Valerie Sherbondy, Auteur ; Richard A. Burgess, Auteur Année de publication : 2016 Article en page(s) : p. 15-21 Langues : Américain (ame) Catégories : Corrosion par piqure pH Pipelines -- Corrosion Pipelines -- Revêtements protecteurs Protection cathodique Revêtements poudre:Peinture poudre Surfaces -- Analyse Transition vitreuse Index. décimale : 667.9 Revêtements et enduits Résumé : Section Ioss of pipe wall is of great concern in the pipeline industry. Reduced wall thickness due to pitting corrosion can adversely impact pipeline integrity ; the results of which can be catastrophic depending on the product that the pipeline is transporting. In order to reduce the opportunity for corrosion, the use of protective coatings is often supplemented with irnpressed current cathodic protection (CP) systems to protect the pipe from corrosion, pitting and eventual perforation in the event of a breach in the protective coating system. In the instance discussed in this article, a pipe section that was excavated displayed severe pitting despite the application of a proven powder coating system and the installation of an impressed current CP system. A section of pipeline needed to be excavated in a relatively small area to accommodate new construction in the surrounding area. The pipeline was buried and put into service only about six months earlier, so corrosion and coating failure were not expected. However, failure of the powder coating system and severe pitting was evident on the excavated pipe section. The pipeline owner was notified to witness the excavation and to examine the condition of the pipe. After the initial section of pipe was excavated, additional lengths of pipe were exposed to determine the extent of the corrosion which was occurring in relatively deep pits that appeared randomly on the pipe sections in two areas. The other sections of excavated pipe revealed no visible corrosion. A section of the 24-inch pipe was removed and replaced. From this section a smaller 15-by-48-inch section was delivered to the laboratory along with a copy of the specification governing the application of the powder coating. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25628 [article]

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Corrosion protection of underground pipelines and other structures / Abhijit Singh in PAINTINDIA, Vol. LXVI, N° 12 (12/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 12 (12/2016) . - p. 99-108 Titre : Corrosion protection of underground pipelines and other structures Type de document : texte imprimé Auteurs : Abhijit Singh, Auteur ; Durgesh Kumar Soni, Auteur ; P. K. Kamani, Auteur Année de publication : 2016 Article en page(s) : p. 99-108 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion Epoxydes Pipelines -- Corrosion Revêtements protecteurs Tuyauterie Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion of underground pipelines and other buried structures takes place by the electrochemical processes. Various factors are responsible for the corrosion of underground pipelines like dissimilar metals in the pipelines, variation of the nature of soil, different surface conditions of the pipelines, electrolysis and due to the attack of different groups of bacteria. Different methods were applied to protect the buried structures from corrosion like application of protective coatings which included hot applied coatings, cold applied coatings and cathodic protection (CP). The development of coating in every sphere e.g. formulation, manufacturing and application has elongated the life of underground structure. Note de contenu : - FACTORS AFFECTING THE CORROSIVITY OF SOILS - THEORY OF CORROSION - TYPES OF NATURAL CORROSION : Dissimilar metals - VARIATION OF THE NATURE OF SOIL : Dissimilar surface conditions - Electrolysis - BACTERIAL CORROSION - CORROSION PROTECTION OF BURIED PIPELINES BY APPLICATION OF COATINGS : Hot applied coatings - There are three types of coated and wrapped pipes - Cold applied coatings - Industrial tapes - Liquide coatings - Recent developments - High temperature resistance epoxy - Low temperature cure epoxy - Damp surface epoxy - CATHODIC PROTECTION : History - The principles of cathodic protection - Cathodic protection can be achieved in two ways - Advantages and uses of cathodic protection - Basic requirements for cathodic protection - DESIGH FACTORS : Initial considerations - Potential level and distribution - Economics of decisions - Problems to be avoided - Types of equipment En ligne : https://drive.google.com/file/d/1UuisUbHbcuHPgm_SrkAzc4MIXustsnuN/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28017 [article]

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Effects of ageing on the mechanical and structural properties of glass/epoxy composite pipes in seawater / Swith Bobba in JEC COMPOSITES MAGAZINE, N° 129 (07-08/2019)  

[article]  inJEC COMPOSITES MAGAZINE > N° 129 (07-08/2019) . - p. 56-61 Titre : Effects of ageing on the mechanical and structural properties of glass/epoxy composite pipes in seawater Type de document : texte imprimé Auteurs : Swith Bobba, Auteur ; Z. Leman, Auteur ; E. S. Zainuddin, Auteur ; S. M. Sapuan, Auteur Année de publication : 2019 Article en page(s) : p. 56-61 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de verre -- Détérioration Eau de mer Epoxydes Pipelines -- Corrosion Index. décimale : 668.4 Plastiques, vinyles Résumé : This study explores the effects of seawater ageing on the mechanical and structural characteristics of reinforcing fibres and matrix resins used in the production of glass/epoxy composite pipes. An in-depth analysis highlights the complications and drawbacks in the ageing process of the specimens, showing that longer immersion times increase the deterioration of the fibre/matrix interface. Finally, a suitable analysis of the immersion time and ageing temperature is proposed. Note de contenu : - Ageing process of glass/epoxy composite pipes in seawater - Analysis of composite pipe failure due to seawater ageing : Moisture absorption analysis - Salt concentration analysis -i Immersion temperature analysis- Gas analysis - Fig. 1 : Failure in pipe joints due to fluid absorption/ageing process - Fig. 2 : Immersion of an E-glass/epoxy composite material in seawater for experimental test - Fig. 3 : Causes of failures in composite pipes due to the ageing process in seawater - Fig. 4 : Effect of water molecules on the fibre/matrix interface - Fig. 5 : Interlaminar shear failure in a composite pile - Table 1 : Concentration of salt components in seawater En ligne : https://drive.google.com/file/d/1diAbxrtCqJgBUbfJ8sGOrVGLj1H1l0nr/view?usp=drive [...] Format de la ressource électronique : pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33814 [article]

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Les matériaux avancés et la mer / Observatoire de techniques et de l'économie marines / Issy les Moulineaux : IFREMER (1994)

Titre : Les matériaux avancés et la mer : Paris, le 31 mars 1994 Type de document : texte imprimé Auteurs : Observatoire de techniques et de l'économie marines, Auteur Editeur : Issy les Moulineaux : IFREMER Année de publication : 1994 Autre Editeur : Issy-les-Moulineaux : Bipe conseil Importance : 35 p. Présentation : ill. Format : 30 cm Langues : Français (fre) Catégories : Alliages Anticorrosion Composites Congrès et conférences Corrosion par l'eau de mer Matériaux cimentaires Matériaux hautes performances Métaux Métaux -- Revêtements protecteurs Pipelines -- Corrosion Index. décimale : 620.11 Matériaux (propriétés, résistance) Note de contenu : - 1. Perspectives économiques du marché des matériaux avancés - 2. L'utilisation des matériaux avancés dans le domaine marin - 3. Les revêtements anti-corrosion pour les pipe-lines sous-marins Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3194

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Microbial corrosion of pipeline coating material / Dhurjoti Banerjee in PAINTINDIA, Vol. LXIV, N° 11 (11/2014)  

[article]  inPAINTINDIA > Vol. LXIV, N° 11 (11/2014) . - p. 98-103 Titre : Microbial corrosion of pipeline coating material Type de document : texte imprimé Auteurs : Dhurjoti Banerjee, Auteur ; Aparajita Majumder, Auteur ; Debasis Sarkar, Auteur ; Buddhadeb Durai, Auteur ; Rajib Dey, Auteur ; Bimal Chaudhuri, Auteur Année de publication : 2014 Article en page(s) : p. 98-103 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Corrosion microbienne Décollement cathodique (revêtement) Essais (technologie) Pipelines -- Corrosion Soufre Index. décimale : 667.9 Revêtements et enduits Résumé : Sulphur oxidizing reducing bacteria detoriates pipeline coating. Different tests like corrosion and cathodic disbondment tests in the laboratory to find the effect of sulphur oxidizing and sulphur reducing bacteria from these. Finally analysis of microbial corrosion of several pipeline coatings are carried out and results and interpreted on the basis corrosion analysis and cathodic disbondment tests and best pipeline coating material is ascertained. Note de contenu : - MATERIALS AND METHODS : Sample collection for detection of sulphur bacteria - Culture based detection of sulphur reducing bacteria in environmental samples - Culture based detection of thiobacillus thioparus in environmental samples - Culture based detection of thiobacillus thioxidans in environmental samples - Analysis of microbiological corrosion of corrosion resistant coatings - Cathodic disbondment test - RESULTS AND DISCUSSION : Culture based detection of sulphur reducing bacteria - Culture based protection detection of sulphur oxidizing bacteria - Microbiological corrosion of corrosion resistant coatings - Cathodic disbondment test En ligne : https://drive.google.com/file/d/1cSglqNcZCZ8IVq3bNKVKDj-d8vq3R5Xi/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22535 [article]

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