Assessment of Automotive Coatings Used on Different Metallic Substrates | Zendy

W. Bensalah | Zendy; N. Loukil | Zendy; M. Wéry | Zendy; H.F. Ayedi | Zendy

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Assessment of Automotive Coatings Used on Different Metallic Substrates

Author(s) -

W. Bensalah,

N. Loukil,

M. Wéry,

H.F. Ayedi

Publication year - 2014

Publication title -

international journal of corrosion

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.312

H-Index - 18

eISSN - 1687-9333

pISSN - 1687-9325

DOI - 10.1155/2014/838054

Subject(s) - materials science , galvanization , tribology , epoxy , coating , composite material , corrosion , aluminium , metallurgy , automotive industry , layer (electronics) , engineering , aerospace engineering

Four epoxy primers commonly used in the automotive industry were applied by gravity pneumatic spray gun over metallic substrates, specifically, steel, electrogalvanized steel, hot-dip galvanized steel, and aluminum. A two-component polyurethane resin was used as topcoat. To evaluate the performance of the different coating systems, the treated panels were submitted to mechanical testing using Persoz hardness, impact resistance, cupping, lattice method, and bending. Tribological properties of different coating systems were conducted using pin on disc machine. Immersion tests were carried out in 5% NaCl and immersion tests in 3% NaOH solutions. Results showed which of the coating systems is more suitable for each substrate in terms of mechanical, tribological, and anticorrosive performance

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