Corrosion Study of Powder-Coated Galvanised Steel. (24th March 2013)

• Record Type: Journal Article
• Authors: Bhadu, Manish Kumar; Guin, Akshya Kumar; Singh, Veena; Choudhary, Shyam K.
• Other Names: Hsu C.-H. Academic Editor.; Umoren S. Academic Editor.
• Is Part Of: ISRN corrosion. Volume 2013(2013)
• Publication Date: 2013-03-24
• Subjects: Corrosion and anti-corrosives -- Periodicals; Materials -- Corrosion -- Periodicals; Corrosion and anti-corrosives; Materials -- Corrosion; Electronic journals; Periodicals; 620.11223
• DOI: 10.1155/2013/464710
• Languages: English
• ISSNs: 2090-8903

Abstract

Abstract : In general, steel is protected from corrosive environments by conversion coatings, that is, phosphating, chromating, and so forth, and then followed by different layers of paints. Nowadays, strict pollution laws and regulations are creating significant challenges for coating experts to develop an environmentally friendly product. Powder coatings have demonstrated their ability as alternative to traditional solvent-borne coatings. In the present work, polyester-based two coating systems have been investigated and their performances have been evaluated for surface topographical properties by Scanning electron microscope (SEM), and energy dispersive spectrometry (EDX), accelerated corrosion resistance by salt spray test, and impedance property by electrochemical impedance spectroscopy. Coating adhesion with the steel and hardness were evaluated by bond strength, cross cut adhesion, and pencil hardness. This paper explains the results and performance of the coatings by the above two systems.