Abstract
Effect of ternary additions on electrochemical behavior of Ni-Fe binary alloys developed by Spark
Plasma Sintering (SPS) were investigated and reported. All specimens revealed common passivity behavior in
H2SO4. Both binary and ternary alloys did not reveal passivity region under saline conditions. The alloys have
lower corrosion rates in NaCl than in H2SO4. Binary Ni50Fe50 alloy is characterized by large pits in H2SO4 and
homogeneous corrosion on surface in NaCl. Ni50Fe40Ta10 shows better passivity in 1 M H2SO4 and Ni50Fe40Al10
has the lowest corrosion rate in 3.5 wt.% NaCl.