Atmospheric corrosion of silver, copper and nickel exposed to hydrogen sulphide : a multi-analytical investigation approach

• The effect of two concentrations of H2S (0.5 and 2.5 ppm), in controlled laboratory conditions (20 °C, 75%RH), on the atmospheric corrosion of pure Ag, Cu and Ni was investigated in this study. The corrosion product morphology and composition were analysed through a multi-technique approach including SEM/EDX, Raman spectroscopy, XPS and XRD. Different corrosion products were identified depending on the type of characterisations providing a better overview of the effect of H2S on the atmospheric corrosion of pure Ag, Cu and Ni. Possible mechanisms involved in the formation of these corrosion products are also discussed in this work. © 2022 The Authors

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

Nyckelord

Electronic materials

Raman spectroscopy

SEM

XPS

XRD

Atmospheric corrosion

Sulphidation

Atmospheric corrosion

Copper corrosion

Nickel compounds

Silver compounds

Sulfur compounds

X ray diffraction

X ray photoelectron spectroscopy

A electronic material

B raman spectroscopy

B SEM

B XPS

B XRD

C atmospheric corrosion

C sulphidation

Electronics materials

Sulphidation

XRD

Raman spectroscopy

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