Mechanical and corrosion resistances of a Sn0.7wt.%Cu lead-free solder alloy
?-Sn cell and dendrite forms of Sn0.7wt.%Cu alloy are characterized. Cu6Sn5 interphase and cell/dendritic spacing are determined. Solidification thermal parameters (mainly cooling rate) are stressed. Relations of mechanical strength and corrosion to the microstructure are derived.
corrosion resistance lead-free solder alloys microstructure sncu alloys mechanical properties