Please join us as we welcome Dr. Graham Sussex from the Nickel Institute for the second webinar in our Corrosion series, Exploring and mitigating galvanic corrosion on November 9th at 9:30 EST.
Dr. Sussex will discuss how stainless steels draw their resistance to corrosion initiation from the self-repairing nanometer-thick chromium-based film. Chlorides (and sometimes other halides) attack weak points and cause local pitting on open surfaces or, at lower levels of aggressive ions, attack propagates in crevices. An empirical composition-based index (PREn) is used to rank stainless steels for resistance to oxygenated chloride fluids but appropriate laboratory tests are required to match this to the real world – but not for high nickel alloys or complex mixtures or deoxygenated environments. Pits can occur at mechanical defects from rough surfaces or around precipitates such as sulphides or even carbides or nitrides. Multiple examples will be presented.

Three main reasons you should attend:
• Knowing how to use (and how not use) PRE numbers.
• Guidelines about when to be concerned about pitting and crevice corrosion
• How to properly use standardized chloride stress corrosion cracking tests when evaluating specific conditions

Save your seat today for the November 9th webinar!
If you can’t attend live, register for the webinar and you will receive the recording to view at a convenient time.