Corrosion properties of thin layers of a copper-tin-zinc-indium alloy (“white bronze”) were investigated in an artificial sweat solution indicating poor resistance properties. The coating degraded via pitting, generalized, and crevice corrosion, as evidenced by scanning electron microscopy-energy-dispersive x-ray analysis (SEM-EDX) investigation. The corrosion mechanism was investigated in situ by means of electrochemical impedance spectroscopy (EIS), and ex situ by x-ray photoelectron spectroscopy (XPS). These combined results demonstrate that the key point of the corrosion failure is the removal of the passive In-Sn oxides.

Corrosion Mechanism in Artificial Sweat Solution of In-Bearing White Bronze Alloy / S. Caporali; U. Bardi. - In: CORROSION. - ISSN 0010-9312. - ELETTRONICO. - 68:(2012), pp. 025001-1-025001-8. [10.5006/1.3683223]

Corrosion Mechanism in Artificial Sweat Solution of In-Bearing White Bronze Alloy

CAPORALI, STEFANO;BARDI, UGO
2012

Abstract

Corrosion properties of thin layers of a copper-tin-zinc-indium alloy (“white bronze”) were investigated in an artificial sweat solution indicating poor resistance properties. The coating degraded via pitting, generalized, and crevice corrosion, as evidenced by scanning electron microscopy-energy-dispersive x-ray analysis (SEM-EDX) investigation. The corrosion mechanism was investigated in situ by means of electrochemical impedance spectroscopy (EIS), and ex situ by x-ray photoelectron spectroscopy (XPS). These combined results demonstrate that the key point of the corrosion failure is the removal of the passive In-Sn oxides.
2012
68
025001-1
025001-8
S. Caporali; U. Bardi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/776613
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