What is it about?

In this publication, we explore the use of Galvele's critical acidification model to evaluate the pitting and crevice corrosion resistance of duplex and super duplex stainless steels.

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Why is it important?

Even though Galvele's critical acidification model has changed our understanding of the localized corrosion phenomenon, it has not been broadly applied to estimate or anticipate the performance of complex engineering alloys. Our work is a first attempt to correlate the critical potential obtained by the critical acidification model with laboratory and long-term exposure testing.


I think that much can be gained from applying Galvele's concept to complex engineering alloys. The critical acidification model could be used to anticipating conditions leading to crevice or pitting corrosion or both. Moreover, the approach also opens the door to simple quality control tests (more on this a future publication).

Dr Mariano Iannuzzi
Norwegian University of Science and Technology

Read the Original

This page is a summary of: Use of the Critical Acidification Model to Estimate Critical Localized Corrosion Potentials of Duplex Stainless Steels, CORROSION, July 2016, NACE International,
DOI: 10.5006/2142.
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