Study on the Correlation between Microstructure Corrosion and Wear Resistance of Ag-Cu-Ge Alloys

Coatings

Antonio Cusma²  Marco Sebastiani¹  Daniele De Felicis¹  Andrea Basso³  Edoardo Bemporad¹ 

[1] Engineering Department, “Roma TRE” University, Via della Vasca Navale 79, Rome 00146, Italy; E-Mails:;Department of Chemistry and Materials Science, National Research Council of Italy, Via dei Taurini 19, Rome 00185, Italy;Legor Group SRL, Via San Benedetto14-34, Bressanvido, VI 36050, Italy; E-Mail:

关键词: silver alloy;    germanium;    SEM;    TEM;    passivation;    thin films;   

DOI  :  10.3390/coatings5010078

来源: mdpi

【 摘 要 】

In this work, a morphological and structural characterization of a ternary Ag-Cu-Ge alloy of known composition was performed with the aim of evaluating how the passivation parameters (time and temperature) influence the morphological features of the material surface. A nanomechanical characterization was performed in order to correlate the morphology and microstructure of the alloy with its tarnish, wear, and scratch resistance. It was found that the addition of germanium to the alloy not only provides the material with tarnish and fire-stain resistance, but it also improves the scratch and wear resistance owing to the formation of a dense and stable thin oxide layer.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.