Corrosion behaviour of AISI 304 stainless steel with Cu coatings in H2SO4

Systematic corrosion investigation of various Cu–Sn alloys electrodeposited on mild steel in acidic solution: Dependence of alloy composition

“…In electroplating, codeposition of metals is widely used in producing high-quality coatings of different alloys. Alloy electrodeposition is one of the practical methods for protection against corrosion in acidic media [15][16][17] [19].…”

Effect of Cu Addition on the Electrochemical Corrosion Performance of Ni3Al in 1.0 M H2SO4

“…A similar effect of the enhancement of corrosion resistance as a consequence of Cu addition has also been observed in steels as was described in Introduction. For example, Pardo et al [29] studied the influence of cementation and electrodeposition of copper coatings on the corrosion resistance of AISI 304 stainless steel immersed in 30 wt.% H 2 SO 4 at temperatures of 25 and 50 ∘ C. The authors stated that the improved corrosion resistance is related to copper dissolution at the initial stages of exposure tests and the presence of Cu 2+ in the solution, which makes the medium more oxidizing, increasing in this way the stability of the passive layer. In addition, the presence of copper at the surface reduces the overpotential of cathodic reaction, enabling the transition from an active region to a passive one.…”

The Mechanism of Corrosion of Steel 304L in the Presence of Copper in Industrial Installations / Mechanizm Korozji Stali Austenitycznej 304L W Obecności Miedzi W Instalacjach Przemysłowych

“…But it is enough to slightly change the chemical composition of the solution, the rate of flow of the corrosive solution or the temperature to significantly affect the corrosion potential of metals [5,9]. The possibility of occurrence of corrosion in such a combination in different corrosive media has been confirmed by literature reports [4,5,6,8,13,15].…”

“…The combination of stainless steel and copper is used in many industrial applications [4,6,13,15], e.g. in solar collectors in which a copper coil is set in a tank made of stainless steel.…”