Ocjena zaštitnih svojstava organiskih prevlaka na različitim metalnim podlogama

Novak, Josip (2019) Ocjena zaštitnih svojstava organiskih prevlaka na različitim metalnim podlogama. = Evaluation of corrosion protection properties of organic coatings on different metal substrates. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, Brose Fahrzeugteile GmbH & Co. KG. Mentor: Alar, Vesna.

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Abstract (Croatian)

The aim of this masters thesis “Evaluation of corrosion protection properties of organic coatings on different metal substrates” is to examine the corrosion resistance properties of various CED and powder coatings, commonly utilized in the automotive industry. For this purpose, standardized steel, hot-dip galvanized steel and aluminium specimens are coated and subsequently tested in accelerated corrosion tests, the emphasis being on the climatic test according to VDA 233-102. The protective properties of the coatings are additionally studied using DC and AC electrochemical methods. The main evaluation criteria are degree of rusting on surface and edges, degree of corrosion and delamination around a scribe, degree of blistering, cross cut test and Daimler scratch test. The utilized accelerated corrosion tests exhibit apparent differences in the onset and character of corrosion regarding those evaluation criteria. Key influencing factors for corrosion resistance, like coating thickness and pre-treatment methods are determined.

Abstract

The aim of this masters thesis “Evaluation of corrosion protection properties of organic coatings on different metal substrates” is to examine the corrosion resistance properties of various CED and powder coatings, commonly utilized in the automotive industry. For this purpose, standardized steel, hot-dip galvanized steel and aluminium specimens are coated and subsequently tested in accelerated corrosion tests, the emphasis being on the climatic test according to VDA 233-102. The protective properties of the coatings are additionally studied using DC and AC electrochemical methods. The main evaluation criteria are degree of rusting on surface and edges, degree of corrosion and delamination around a scribe, degree of blistering, cross cut test and Daimler scratch test. The utilized accelerated corrosion tests exhibit apparent differences in the onset and character of corrosion regarding those evaluation criteria. Key influencing factors for corrosion resistance, like coating thickness and pre-treatment methods are determined.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: korozija; organske prevlake; ubrzana ispitivanja korozije; elektrokemijska impedancijska spektroskopija; VDA 233-102 standard
Keywords (Croatian): corrosion; organic coatings; accelerated corrosion tests; electrochemical impedance spectroscopy; VDA 233-102 standard
Subjects: TECHNICAL SCIENCE > Mechanical Engineering > general mechanical engineering (construction)
TECHNICAL SCIENCE > Mechanical Engineering > mechanical engineering design and drafting
Divisions: 1100 Department of Welded Structures > 1120 Chair of Materials Protection
Date Deposited: 17 Jan 2019 10:07
Last Modified: 24 Oct 2019 14:45
URI: http://repozitorij.fsb.hr/id/eprint/9019

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