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

Liyana, N.K. and Fazal, M.A. and Haseeb, A.S. Md. Abdul (2018) Polarization and EIS studies to evaluate the effect of aluminum concentration on the corrosion behavior of SAC105 solder alloy. Materials Science-Poland, 35 (4). pp. 694-701. ISSN 2083-1331, DOI https://doi.org/10.1515/msp-2017-0097.

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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.

Item Type:	Article
Funders:	University of Malaya project (RP013B-13AET)
Uncontrolled Keywords:	Corrosion; Lead-free solders; EIS, polarization
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Ms. Juhaida Abd Rahim
Date Deposited:	08 Aug 2018 02:47
Last Modified:	21 Feb 2019 03:37
URI:	http://eprints.um.edu.my/id/eprint/18984

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