Akademik Veri Yönetim Sistemi
Metallurgy and Materials Science Research Institute (MMRI) Chulalongkorn University, cilt.30, sa.3, ss.64-71, 2020 (ESCI)
Flame spraying of polymers allows obtaining functional coatings for protecting
against wear and corrosion. Among many engineering polymers, the Ethylene-Vinyl
Acetate (EVA) copolymer attracts attention with its superior mechanical and chemical
properties. EVA, which has high chemical resistance, high impact resistance and
mechanical flexibility, high friction coefficient, is among the candidate coating material
that can be used in aerospace, automotive, marine, chemical and manufacturing industries
to protect metallic surfaces. The use of polymeric coatings in applications is often
restricted when large surfaces need to be coated or if the coating needs to be applied
in the openair field. Flame spraying is one of the most cost-effective methods in the
production of polymeric coatings. The curing process and solvent use required in
conventional polymeric coating applications are not required in thermal spray coating
applications. Contact of polymeric surfaces with solid surfaces and abrasive solid
particles reduces polymer life and performance. In this study, solid particle wear
behaviors of EVA coatings on stainless steel produced by flame spraying is investigated
and then tested in different erosive wear test conditions. The erosive wear rates were
compared with stainless steel. The main wear mechanism in the polymeric coatings is
associated with micro-deformation, micro-cratering and micro-crack formation.