**1. Introduction**

106 Corrosion Resistance

Stemp M., Mischler S. & Landolt D. (2003). The effect of mechanical and electrochemical

Takadoum J. (1996). The influence of potential on the tribocorrosion of nickel and iron in

Tiedemann W. H., Newman J. & Bennion D. N. (1973). The errors in measurements of

Uruchurtu J. C. & Dawson J. L. (1987). Noise analysis of pure aluminium under different pitting conditions. *Corrosion*, Vol. 43, No. 1, pp. (19-25), ISSN 0010-9312. Watson, S.W., Friedersdorf, F.J., Madsen, B.W. & Cramer, S.D. (1995). Methods of measuring wear-corrosion synergism. *Wear*, Vol. 181-183, No. 2, pp. 476-484, ISSN 0043-1648. Zhang J., Wenger F. & Galland J. (1987). Contrôle de l'état local de corrosion de structures

255, No.1-6, pp. (466–475), ISSN 0043-1648.

938X.

800), ISSN 12518069.

parameters on the tribocorrosion rate of stainless steel in sulfuric acid. *Wear*, Vol.

sulfuric acid solution. *Corrosion Science*, Vol. 38, No. 4, pp. (643–654), ISSN 0010-

electrode kinetics caused by nonuniform ohmic-potential drop to a disk electrode. *Journal of the Electrochemical. Society*., Vol. 120, No. 2, , pp. (256-258), ISSN 0043-1648.

métalliques de grandes dimensions par les mesures d'impédance électrochimiques. *Comptes Rendus de l'Académie des Sciences, Paris,* Série 2, Vol. 304, No. 14, pp. (797-

> Tin-lead (Sn-Pb) alloys for metal interconnections were first used about 2000 years ago. Recently, the use of alloys has become essential for the interconnection and packaging of virtually all electronic products and circuits. Sn-Pb solder alloys have been widely used in the modern electronics industry because of their low melting points, good wettability, good corrosion resistance, low cost, reasonable electrical conductivity, and satisfactory mechanical properties. However, due to health concerns, recent legislation, and market pressures [1], the electronic industry is moving toward green manufacturing as a global trend. In the area of packaging, mainly driven by European RoHS (Reduction of Hazardous Substances), lead was banned effective July 1, 2006, except in some exempt items. In addition, Pb and Pb-containing compounds, as cited by the Environmental Protection Agency (EPA) of the US, are listed among the top 17 chemicals posing the greatest threat to human life and the environment [2] because of lead's toxicity [3]. In the electronics industry, the lead generated by the disposal of electronic assemblies is considered hazardous to the environment. Therefore, developing viable alternative Pb-free solders for electronic assemblies is of principal importance.
