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Effect of Ag addition on the corrosion properties of Sn-based solder alloys

journal contribution
posted on 2010-01-01, 00:00 authored by Q Bui, N Nam, B I Noh, A Kar, J G Kim, S B Jung
Corrosion properties of three different Sn-Ag lead free solder alloys have been investigated in 0.3 wt% Na2SO4 solution as corrosive environment. As cast solder alloy was analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Volume fractions of the Ag3Sn in the solders were determined by image analysis technique. Pitting potential and corrosion potential for the alloys were determined by potentiodynamic tests. Electrochemical impedance spectroscopy (EIS) was carried out to measure the film and charge transfer resistance. Alloys with lower Ag content have been found as better corrosion resistance material.

History

Journal

Materials and corrosion

Volume

61

Issue

1

Pagination

30 - 33

Publisher

Wiley - VCH Verlag GmbH & Co. KGaA

Location

Weinheim, Germany

ISSN

0947-5117

eISSN

1521-4176

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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