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8. Pipeline stress corrosion cracking: detection and control

Author

Beavers, John

Subjects
United States. Pipeline and Hazardous Materials Safety Administration, Gas transmission industry, Corrosion (Chemistry), Gas pipelines, Petroleum pipelines, Business, Petroleum, energy and mining industries
Abstract

Corrosion of underground natural gas and liquid petroleum pipelines occurs in a variety of forms and requires specialized mitigation methods to detect and control. First identified in the 1960s, stress [...]

Published
2015

9. Corporate minutes: when less is more

Author

Beavers, John P. and Kinross, Kevin M.

Subjects
Corporate directors, Business, Business, general
Abstract

Your board and committee minutes may seem like necessary minutiae compared to the major governance issues facing companies today. However, minutes are in fact legally crucial. They can be the [...]

Published
2008

20. Alternating Current (AC) Impedance Testing of Coated Traycans

Author

CORTEST COLUMBUS TECHNOLOGIES OH, Lawson, Kurt, Beavers, John, CORTEST COLUMBUS TECHNOLOGIES OH, Lawson, Kurt, and Beavers, John

Abstract

This is the final report on Cortext Columbus Technologies' program entitled 'AC Impedance Testing of Coated Trycans', performed under Contract DAAK60-90-1301. The overall objective of the program was to evaluate the relative resistance of several candidate coatings prior to retorting to a solution containing NaCl and citric acid (simulating saline, acidic food product) at ambient temperature. An additional objective of the program was to perform an initial assessment of the applicability of the AC impedance technique as a quality assurance technique for traycan coatings. The performance of the coatings was evaluated by means of an Electrochemical Impedance Spectroscopy (EIS) technique, also referred to as AC impedance. The EIS technique was found to be a sensitive technique for measuring coating degradation on the traycans. Of the coatings analyzed, the VMC coating, in general was found to be the best performer, followed closely by DMS and VMS. The control coating was found to be the poorest coating, of the coatings analyzed.

Published
1993

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