Effect of Nickel Content on the Corrosion Resistance of Iron-Nickel Alloys in Concentrated Hydrochloric Acid Pickling Solutions

Table 1

Corrosion data obtained from the polarization curves for Fe-36% Ni and Fe-45% Ni in 1 M HCl solutions.

Alloy	Corrosion parameter
	/V/dec^−1	/V	/Vdec^−1	/Acm^−2	/cm^2	/mpy
Fe-36% Ni	0.135	−0.475	0.035	55.0	2.197	19.44
Fe-45% Ni	0.100	−0.248	0.048	2.0	70.50	0.728