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dc.contributor.authorThomassen, Jan Inge
dc.date.accessioned2018-09-14T07:41:58Z
dc.date.available2018-09-14T07:41:58Z
dc.date.issued2018
dc.identifier.urihttp://hdl.handle.net/11250/2562594
dc.descriptionMaster's thesis in Mechanical engineeringnb_NO
dc.description.abstractThe major purpose of this thesis was to investigate and assess what effect of repassivation product has on corrosion resistance of 316L in marine atmosphere. Additionally, compare the chemical composition with the certificate. Several methods was performed to break down the passive layer, where the most successful method was used further to achieve general corrosion, after being exposed for simulated marine atmosphere. Visual inspection was observed before and after repassivation, and electrochemical test was done to find the pitting- and repassivation potential. The electrochemical test was performed according to standard ASTM G61-86 with a few adjustments. Similarly, the chemical composition was compared with the certificate. General corrosion was obtained after being exposed for simulated marine atmosphere, before it was exposed for a rotary steel brush with hard braided threads equipped by a grinder to break down the passive layer. The visual inspection and ASTM G61-86 test showed Valhall UltraGel as the best environmentally friendly product and Avesta, with pickling, as the best product used with waste water treatment system. Chemical analysis showed that the chemical composition match with the certificate.nb_NO
dc.language.isoengnb_NO
dc.publisherUniversity of Stavanger, Norwaynb_NO
dc.relation.ispartofseriesMasteroppgave/UIS-TN-IMBM/2018;
dc.subject316Lnb_NO
dc.subjectmaskinteknikknb_NO
dc.subjectmaskinkonstruksjonnb_NO
dc.subjectrepassivationnb_NO
dc.subjectpitting corrosionnb_NO
dc.subjectpitting potentialnb_NO
dc.subjectgeneral corrosionnb_NO
dc.subjectchemical compositionnb_NO
dc.subjectmarine atmospherenb_NO
dc.titleInvestigation of the corrosion properties of 316L in marine atmosphere and assessment of the effectiveness of different surface repassivation productsnb_NO
dc.typeMaster thesisnb_NO
dc.subject.nsiVDP::Teknologi: 500::Maskinfag: 570::Maskinkonstruksjon og materialteknologi: 571nb_NO


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  • Studentoppgaver (TN-IKM / TN-IMBM) [1213]
    Master- og bacheloroppgaver i Konstruksjoner og materialer / Maskin, bygg og materialteknologi (maskinkonstruksjoner, byggkonstruksjoner og energiteknologi) / Masteroppgaver i Offshore teknologi: industriell teknologi og driftsledelse - Offshore technology: industrial Asset management / Masteroppgaver i Offshoreteknologi : offshore systemer (konstruksjonsteknikk og marin- og undervannsteknologi-subsea technology)

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