Potentiodynamic polarization effect on phase and microstructure of SAC305 solder in hydrochloric acid solution

The corrosion analysis of SAC305 lead free solder was investigated in Hydrochloric acid (HCl) solution. Potentiodynamic polarization was used to polarize the SAC305. The effect of polarization on the phase and microstructure were compared to as-prepared SAC305 solder. Potentiodynamic polarization in...

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Bibliographic Details
Main Authors: Zaini, Nurwahida Binti Mohd, Nazeri, Muhammad Firdaus Bin Mohd
Format: Conference Proceeding
Language:English
Subjects:
Corrosion
Corrosion prevention
Corrosion products
Hydrochloric acid
Lead free
Microstructure
Polarization
Protective coatings
Tin base alloys
Tin dioxide
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Summary:The corrosion analysis of SAC305 lead free solder was investigated in Hydrochloric acid (HCl) solution. Potentiodynamic polarization was used to polarize the SAC305. The effect of polarization on the phase and microstructure were compared to as-prepared SAC305 solder. Potentiodynamic polarization introduces mixed corrosion products on the surface of SAC305 solder. The XRD analysis confirms that the mixed corrosion products emerged on the surface after polarization by formation of SnO and SnO2 of which confirmed that dissolution of Sn was dominant during polarization. Microstructure analysis reveal the presence of gap and porosities produced limits the protection offered by the passivation film.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4958759