March 27, 2019
By Sammy Miles, Managing Editor in Chief, CORROSION journal
2019’s Plenary Lecturer, Digby D. Macdonald, kicked off Tuesday. Macdonald presented to a packed house about the initiation of pitting corrosion and the capabilities to accurately predict passivity breakdown.
Macdonald focused on aluminum-lithium (Al-Li) alloys, commonly used in the aerospace industry to help with light weighting. He guided the audience through the formation of blisters on the surface of alloys, and the seven reactions that occur according to the Point Defect Model. He discussed how we can predict the distribution of breakdown on the surface of the alloys.
Macdonald commented that many of the pits will “die,” comparing the lifecycle of humans and pits when they are in direct competition for resources with others close by.He noted that cracks nucleate at dead pits and discussed the influence of other compounds on the breakdown potential.
Macdonald concluded by stating that no only can we predict passivity breakdown locally,we have the tools to do it accurately.
The importance of routine inspection and documentation of aboveground storage tanks (ASTs)—whether required daily, weekly, monthly, or annually—was the focus of a training session on Wednesday afternoon during CORROSION 2019. Presented by Pat Keo of TTI Environmental, Inc., the training incorporated all aspects of inspecting ASTs.
The 15th Annual Silent Auction will be held in the CORROSION 2019 Exhibit Hall beginning today, March 25 at 5 p.m., and will run through Wednesday, March 27 at 4 p.m.A wide variety of items and collectibles provided by Grandstand Sports & Memorabilia will be on display and open for bidding during NACE Expo hours. Take a break from the hustle and bustle and visit the auction to bid on authentic, high-quality sports and entertainment memorabilia.
On Monday morning, NACE International hosted the interactive forum, Bridging the Gap with Effective Leadership, where attendees learned from a variety of experts in the fields of knowledge retention, knowledge transfer,and leadership best practices.