Methodology of Crevice Corrosion Testing for Stainless Steels in Natural and Treated Seawaters

Description

Crevice corrosion in chloride-containing environments, particularly sea water, poses a serious threat to the integrity of stainless steels and has been responsible for many failures. The first nine chapters of the book describe the development of the new crevice corrosion test method for plate and tubular materials and its application to a number of austenitic, ferritic and duplex stainless steels. A key aim was to develop a crevice corrosion test procedure where the biological activity and oxidation capacity of natural and treated sea waters are simulated electrochemically. Another important aspect of the work was to formulate a new synthetic sea water capable of simulating the corrosiveness of natural and treated sea waters, including the effects of the bio-films that can form in natural waters. The final chapter presents the results of two large collaborative test programs involving a total of 19 laboratories in eight countries worldwide. These involved tests in natural and synthetic sea waters to evaluate the new crevice test and synthetic sea water. Content: Front Matter • Preface • Table of Contents 1. Crevice Corrosion from a Historical Perspective 2. Objectives and Background 3. Laboratory Calibration 4. Crevice Formers for Specimens of Plate Material 5. Crevice Corrosion Testing of Tubes 6. Formulation of New Synthetic Seawater for Aerobic Environment 7. Simulation of Anaerobic Environments 8. Synergy of Aerobic and Anaerobic Conditions 9. Electrochemical Simulation of Aerobic Environments with or without Chlorine 10. Proficiency of Crevice Corrosion Methods: Inter-Comparison Tests Appendices