Materials Performance

OCT 2018

Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.

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OCTOBER 2018 MATERIALSPERFORMANCE: VOL. 57, NO. 10 45 or they can be mechanistic models based on scientific principles. Today, we are most successful using models to predict within a given variable space represented by the data. Predicting outside this variable space is very difficult. As knowledge-based analytics continues to grow along with the analyti- cal capabilities of data processing, the ability to combine data, empirical models, expert models, mechanistic models, and machine learning principles will allow for improved corrosion prediction in both variable space and time. Understanding the uncertainty associated with corrosion predictions will allow the engineer/operator to better understand how to utilize the informa- tion and when additional data may be required to decrease the uncertainty, if necessary. Moving toward the ability to provide near real time predictions will be critical to meeting expectations of operators and, in many cases, the public. For example, there is now almost zero tolerance for failures of any kind on energy pipelines. Environmentalists and the general public use these failures as justification to oppose new pipelines or shut down existing pipe- lines. I think our business as usual approach to corrosion control as well as integrity assessments will require significant changes and updating. The predictive capability of knowledge-based analytics, modeling, and machine learning tied to integrity assessment and near real time risk management will form the basis for these changes and the ability to predict pipeline criti- cal conditions before a failure happens. JACK T INNE A Almost 50 years ago, I was working in my first job after graduation, doing research on cement chemistry for the civil engineering department of my alma mater. At that time, the University of Illinois had a Materials Engineer- ing Group that included folks from ceramic, chemical, civil, and metallurgical engineering with occasional visits by someone from the physics or chemistry departments. Today, Illinois has a Materials Science and Engineering Depart- ment that rose from the merging of previous metallurgy and ceramic engi- neering departments. Materials science can offer the practicing corrosion engineer many choices in controlling corrosion. I see the materials science field much like electrochemistry was in the time of Sir Humphry Davy when the father of CP made his greatest discovery: Michael Faraday. Yes, in the 1820s when Davy and Faraday were developing CP for the British Navy, our understanding of electrochemistry had advanced from Coulomb, Galvani, Priestly, and Volta, but in terms of where we are today our use of electricity was just getting started.

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