Effect of polarizations on Sn–Zn solders alloys in alkaline electrolyte
作者： Muhammad Firdaus Mohd Nazeri , Ahmad Badri Ismail , Ahmad Azmin Mohamad
DOI: 10.1016/J.JALLCOM.2014.04.034
关键词:
摘要: Abstract The corrosion properties of Sn–9Zn lead-free solder was studied through potentiodynamic polarization in 6 M potassium hydroxide at different scanning rates. rates remained nearly constant 2.1 × 10 −4 A cm −2 from scan 2.0 mV s −1 to 3.5 mV s before significantly increasing as the increased higher than . morphological analysis showed that two distinctive structures a lamellar-like groove and irregularly shaped product compounds co-existed on surface after being polarized In addition, phase elemental analyses revealed formation mixed products SnO, SnO 2 , ZnO polarization. Moreover, ultimate tensile stress endured by joint decreased 26%
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