Inspectioneering

Jonathan D. Dobis: About the Author
Materials and Corrosion Director, The Equity Engineering Group, Inc.


Jonathan D. Dobis

Jon Dobis has over 35 years’ experience in Materials & Corrosion in the refining and chemical process industries including 10 years as a metallurgist at a major US refinery.  Jon  was  the  project  manager  and  primary  author  of the API  571  document on “Damage Mechanisms Affecting Fixed Equipment in the Refining Industry”.  He is presently Acting Director of the Materials & Corrosion Group for Equity Engineering and has authored or co-authored more than 25 technical publications including five on the subject of corrosion in HF Alkylation Units.   Jon has BS and MS degrees in Metallurgical Engineering and is a registered professional engineer in several states.

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Published Articles

July/August 2016 Inspectioneering Journal

This article summarizes a recent finite element analysis (FEA)-based study that employs creep simulation techniques to investigate the elevated temperature response of piping with peaked longitudinal weld seams.

July/August 2005 Inspectioneering Journal

This bulletin is part of a series of WRC Bulletins that contain the technical background and other information to evaluate damage mechanisms in various industries to facilitate the use of API 579. These bulletins, shown below, will be updated based on the latest knowledge and technology developed for identification of damage mechanisms.

July/August 2004 Inspectioneering Journal

The following is the final part of a 2-part series outlining the relationship between key operating parameters and corrosion that has been used to develop a set of guidelines to define an operating envelope.

May/June 2004 Inspectioneering Journal

Corrosion and fouling in HF Alkylation Units are closely linked to feed quality and operating conditions. This article outlines the relationship between key operating parameters and corrosion that has been used to develop a set of guidelines to...


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