David Hendrix, P.E., is president of The Hendrix Group, Inc., a metallurgical engineering consulting company providing materials engineering and corrosion services to the chemical, refining, oil & gas, pulp & paper, and insurance/legal communities. David has extensive experience consulting on a national and international basis in the areas of metallurgy/materials, corrosion, corrosion control documents including API 584 Integrity Operating Window development, root cause failure analysis, risk-based inspection, mechanical integrity and fitness-for-service. He has conducted several thousand failure analysis investigations concerning mechanical failures, and ambient and elevated-temperature corrosion failures. Mr. Hendrix was the lead outside consultant for the U. S. Chemical Safety and Hazard Investigation Board in investigating the corrosion-related failure of equipment in a refinery crude unit that resulted in a serious fire and has served as a testifying expert regarding mechanical integrity technology, corrosion and failure analysis.
He has worked with a variety of end-user companies, equipment manufacturers, and insurers on root-cause failure analysis, inspection and testing, and specification and selection of metals, alloys, and paints and coatings. This work has included materials selection for corrosive environments and new design applications, problem solving, and investigating the fitness-for-service of in-service equipment and components.
Mr. Hendrix graduated with honors from the University of Alabama with a bachelors degree in Metallurgical Engineering. Academic honors included deans list, and selection to Tau Beta Pi and Alpha Sigma Mu engineering honor societies. He is a registered Professional Engineer in the state of Texas and a NACE International accredited Materials Selection/Design Specialist. David holds an API 581 Risk Based Inspection certification and has been certified as a API Aboveground Storage Tank Inspector.
Mr. Hendrix has presented/authored more than thirty three papers and publications on the subjects of corrosion, failures, paints and coatings, equipment selection and performance, and risk-based inspection of process equipment. A member of numerous technical associations including NACE, ASM, and SPE, David has held many responsible positions, including Chairman of NACE International subcommittee T-5B, High-Temperature Materials Performance; 1999-2000 Chairman of the NACE International Houston Chapter; 2001-2002 Education Committee Chairman of the ASM Houston Chapter; 1999 Vice-Chairman of ASM's Gulf Coast Corrosion Control Conference (GCCCS); Vice-Chairman of the 2003 NACE Central Region Conference, and 2006-2007 Chairman of the ASM International Houston Chapter.
Prior to founding The Hendrix Group, David was Manager, Metallurgical Engineering department of Law Engineering, a multi-disciplined consulting company with offices nationwide. Responsibilities at Law included consulting on company wide materials engineering projects, business development, and technical advisor to the department's NDT group.
Mr. Hendrix also held responsible positions in Texaco, Inc.'s corporate Metallurgical Engineering department and with ARCO Chemical Co.'s corporate Specialty Engineering group. At ARCO, Mr. Hendrix was responsible for failure analysis, corrosion and materials selection for ARCO's Texas chemical plants, materials advisor on new plant construction, investigated equipment fabrication and welding problems, audited fabrication shops, and administrated ARCO's corporate equipment coatings standard.
The following papers have been published or presented by David Hendrix. If you would like to receive a personal copy of a paper, you can contact the author at Hendrix Group Email.
The papers marked with the icon are available in Portable Document Format (pdf) on-line in the Technical Papers section after reading and agreeing with the legal disclaimer.
- Metallurgical Investigation of a Methanol Furnace Tubing Failure, Corrosion/84, Paper No. 13 (Houston, TX: NACE, 1984).
- Contributing Factors to the Unusual Creep Growth of Furnace Tubing in Ethylene Service, Corrosion/85, Paper No.21, (Houston, TX: NACE, 1985).
- High Temperature Wrought Alloys, Process Industries Corrosion‐The Theory and Practice, (Houston, TX: NACE, 1986).
- Ongoing Failure of Potable Water Piping in a High‐Rise Hotel‐ Causes and Cures, ASPE, February 1993 meeting.
- Paint Standards for Large Capital Projects, Protective Coatings for Petrochemical Facilities, Proceedings from the SSPC Petrochemical Conference, Houston, TX. June 2‐5, 1993.
- Revising Corporate Standards for Capital Projects: A Case History, JPCL, 10, 11: (1993), p. 27.
- Engineering Alternatives to Repair After An API 653 Tank Inspection, International Liquid Terminals Association, 14th International Operating Conference, June 13‐16, 1994.
- Hazardous Chemicals Process Equipment: Assuring Reliability from Design Through Installation, Hydrocarbon Processing's 3rd International Conference on Improving Reliability in Petroleum Refineries and Chemical Plants, Houston, TX., Nov. 15‐18, 1994.
- Improve Storage Tank Inspections, Hydrocarbon Processing, January 1995.
- The Influence of Water Cycle Chemistry in the Failure of Water‐Wall Tubes in a High‐Pressure Boiler Due to Hydrogen Attack, Corrosion/95, Paper No. 613, (Houston, TX: NACE, 1995).
- Hydrogen Attack on Waterwall Tubes in a High-Pressure Boiler, MP 34, 8 (Houston, TX: NACE, 1995), p. 46.
- Risk Based Inspection: A Qualitative Risk‐Based Methodology for Ranking Fixed Equipment on the Probability of Internal Failure, The 4th International Conference on Process Plant Reliability, Hydrocarbon Processing, Houston, TX, November 14‐17, 1995.
- Caveats in the Selection and Installation of Elastomeric Materials for Gasketed Joints, Energy Rubber Group, Winter Technical Meeting, Houston, TX, January 18, 1996.
- Update Aboveground Storage Tank Inspections, Hydrocarbon Processing, November 1996.
- Inspecting Process Equipment Based On Probability‐of‐Failure Rankings, Energy Week Conference, January 28‐30, 1997, Houston, TX.
- Proper Selection and Installation of Elastomers in Petrochemical Systems, NACE International Central Area Conference, September 28 - October 1, 1997, Galveston, TX.
- Hot Corrosion Failure of a 25 MW Land‐Based Gas Turbine in a Marine Environment, NACE International Central Area Conference, September 28 - October 1, 1997, Galveston, TX.
- Hydrogen Embrittlement of High‐Strength Fasteners in Atmospheric Service, MP 36,12 (Houston, TX: NACE, 1997) p. 54.
- Hot Corrosion of a 25 MW Land‐Based Turbine in a Marine Environment, Corrosion/98, Paper No. 203, (Houston, TX: NACE, 1998).
- The Comparative Performance of Six Cast Tube Alloys in an Ethylene Pyrolysis Test Heater, Corrosion/98, Paper No. 430, (Houston, TX: NACE, 1998).
- Revise Aboveground Storage Tank Inspections, (Houston, TX: Hydrocarbon Processing, October 1998), p.105.
- High Strength Fasteners In Atmospheric Service, Fatigue and Failure of Fasteners, TechEdge Series, Corrosion/99, (Houston, TX.: NACE).
- Performance of Cast Tube Alloys in an Ethylene Pyrolysis Test Heater, MP 38, 6 (Houston, TX: NACE, 1999)
- Effects of Heater Operation on Creep Rupture of Carburized Cast Ethylene Heater tubes and The Results of a Test Program to Optimize Heater Tube Alloy Selection, Eighth International Process Plant Reliability Conference, Hydrocarbon Processing, October 24‐28, 1999.
- Analysis and Remediation of a CO2 Pipeline Failure, D. E. Hendrix, R. D. Kane, K. E. Kueter, Corrosion/2000, Paper No. 9, (Houston, TX: NACE, 2000).
- Aggressive Corrosion of 316SS in an Amine Unit: Causes and Cures, D. E. Hendrix, F. Addington, Corrosion/2000, Paper No. 698 (Houston, TX: NACE, 2000).
- Brittle Fracture of an Underground Gas Gathering Pipeline at ERW Weld Groove Defects, D. E. Hendrix, Steve O’Toole, Richard Mueller, Ronald Frishmuth, Corrosion/2002, Paper No. 02101 (Houston, TX: NACE, 2002).
- Benefits and Challenges Associated with CRA Injection Tubing in Corrosive Gas Wells, D. E. Hendrix, R. B. Sullivan III, D. L. Hinson, SPE Annual Technical Conference and Exhibition, Houston, Texas, 26-29 September 2004.
- Corrosion of Copper and Copper Alloys in Potable Water Systems, NACE Central Area Conference, 2006.
- Corrosion of Metals in Contact with Preservative-Treated Wood, An Update, June 2006 (printed by ARCH Wood Protection)
- Guidance for Plant Personnel in Gathering Data and Samples for Material Failure Analyses, Materials Technology Institute (MTI) Book, 2009.
- Corrosion Control Documents, An Essential Element of a Mechanical Integrity and Risk-based Inspection Program, API Inspection Summit 2011, January 24-27, 2011, Galveston Island Convention Center, Galveston, TX.
- The elusive goal of “Root Cause” failure analysis – the importance of persistence, as illustrated by O&G production corrosion case histories: (1) Distinguishing between MIC, CO2 and H2S pitting and, (2) the accelerated corrosion of alloy 625 injection tubing in wet gas production wells. ASM Houston Chapter Failure Analysis Seminar, April 2‐3, 2012
- Essential Elements of a Piping Reliability Program: Development and Management of Corrosion Systems and Circuits, API Inspection Summit 2013, January 7-10, 2013, Galveston Island Convention Center, Galveston, TX.
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