Effect of applied potential SSC – permeation curves February 19, 2017 by Mariano Iannuzzi Permeation current as a function of polarization potential (left) and elongation to failure versus applied current density. After Yoshino, Y. & Minozaki, Y. Sulfide stress cracking resistance of low-alloy nickel steels. Corrosion 42, 222-233 (1986).