Design of anti-tarnish sterling silver Ag-Cu-Zn alloy and investigation of silicon addition influence on mechanical and corrosion characteristics

2018
Authors
Dimitrijević, Stevan
Parežanin, Vladimir

Kamberović, Željko
Ranitović, Milisav
Korać, Marija
Dimitrijević, Silvana

Article (Published version)
Metadata
Show full item recordAbstract
This paper presents investigations of the influence of silicon addition on the mechanical and corrosion characteristics of the sterling silver Ag-Cu-Zn alloys. The procedure for obtaining Ag-Cu-Zn-Si alloys in small ranges of composition was also presented Vickers hardness tests and three electrochemical tests were performed on the samples in this study. Open circuit potential measurements, linear polarization resistance method, and potentiodynamic polarization tests were employed to determine corrosion characteristics of the alloys. The materials were tested in 0.9% Nacl solution, artificial sweat, 0.1 and 0.01 M sodium sulfide solutions. It was shown that addition of silicone increases hardness and generally improves sulfidation resistance and corrosion characteristics in near-neutral chloride solutions of the Ag-Cu-Zn alloys.
Keywords:
Ag-Cu-Zn-Si system / Alloy / Silver / SulfidationSource:
Chemical industry & chemical engineering quarterly, 2018, 24, 3, 267-274Publisher:
- Savez hemijskih inženjera, Beograd
Projects:
- Innovative synergy of by-products, waste minimization and clean technologies in metallurgy (RS-34033)
- Development of technologies for recycling of precisious, rare and associated metals from solid waste in Serbia to high purity products (RS-34024)
DOI: 10.2298/CICEQ170660038D
ISSN: 1451-9372