Statistical Distribution of Critical Pitting Temperature of Stainless Steels

The range of Critical Pitting Temperature (CPT) for five different stainless steels is measured to determine whether it wide or narrow. impact bulk solution composition and surface passivation on CPT was also in order evaluate the relative importance pit initiation propagation CPT. results study revealed that can be within a narrow (±1.3 °C) regardless alloy composition. It shown experimental error caused by crevice corrosion lead wider values. These are explained using Salinas-Bravo Newman model. that, conditions studied herein, not dependent initiation, but rather, transition phenomenon, i.e., determined from metastable stable growth.