Polarization and EIS studies to evaluate the effect of aluminum concentration on the corrosion behavior of SAC105 solder alloy-Reference-Cited by-同舟云学术

Polarization and EIS studies to evaluate the effect of aluminum concentration on the corrosion behavior of SAC105 solder alloy

Published:2017-12-20 Issue:4 Volume:35 Page:694-701
ISSN:2083-134X
Container-title:Materials Science-Poland
language:en
Short-container-title:

Author:

Liyana N. K.¹,Fazal M. A.¹²,Haseeb A. S. M. A.¹

Affiliation:

1. Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur , Malaysia

2. Department of Mechanical Engineering, University of Jeddah, Jeddah , Saudi Arabia

Abstract

Abstract This paper presents an investigation on corrosion behavior of Sn-1.0Ag-0.5Cu-XAl (X = 0, 0.1, 0.5, 1.0) by means of polarization and electrochemical impedance spectroscopy (EIS) measurements in 3.5 wt.% NaCl solution. The results show that addition of aluminum into SAC105 shifts the corrosion current density and passivation current density towards more positive values. It is also found that with an increase in aluminum concentration in SAC105 solder alloy, the corrosion current density increases and polarization resistance decreases. This suggests that SAC105 with the highest concentration of Al has the lowest corrosion resistance. In this case, the corrosion behavior seems to be attributed to anodic dissolution of aluminum and Sn-matrix.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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