Corrosion of flame-assisted CVD silica-coated steel sheet

Enhancement of corrosion protection of AISI 304 stainless steel by nanostructured sol–gel TiO2 films

“…can be deposited on metals to improve their surface properties [5][6][7][8][9][10][11]. There are several techniques for the deposition of ceramics films and coatings on metal substrate, such as chemical vapor deposition (CVD) [12], physical vapor deposition (PVD) [13], plasma spraying [14], electrochemical deposition [15] and sol-gel process [5,6,10,[16][17][18][19][20][21][22]. The sol-gel method is an environmentally friendly technique of surface protection and had showed the potential for the replacement of toxic pretreatments and coatings which have traditionally been used for increasing corrosion resistance of metals.…”

Properties of FA-CVD silica coated steel sheet after deformation: coating integrity and corrosion related forming limit curve

“…Cracking and flaking will lead to direct painting on the steel surface, and deadhesion and buckling can induce voids at the interface. In a previous investigation, 17 we found that the corrosion performance of silica type III coated steel sheet was higher than that of steel sheet coated with type II (see also Table 1), and we showed that the corrosion behaviour of undeformed silica coated steel sheet is governed by the amount of free steel surface (pinholes). At locations of pinholes, iron dissolution and oxygen reduction proceed, and under atmospheric corrosion conditions, micro-or macroscale galvanic elements will likely form.…”

“…The quality of the silica coating as well as the quality of the coating system was investigated in Ref. 17. Here, we first report results on the integrity/adhesion of the silica coating after deformation, followed by results on the adhesion of the coating system.…”

Impact of porosity and thickness of nano‐TiO2 films on the corrosion protection performance of C‐steel in H2SO4

“…However, C-steels are very prone to corrosion in environments containing acidic solutions. [4][5][6] There are several techniques for the deposition of titania films and coatings on metal substrates, such as physical vapor deposition, 7 chemical vapor deposition, 8 plasma spraying, 9 laser cladding, and chemical plating or sol-gel process. 3 There is an urgent need for alternative coatings that can provide corrosion resistance to metal or alloy surfaces due to the environmental hazards posed by conventional coatings, such as chromates.…”