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Flow Accelerated Corrosion (FAC)
Introduction Flow accelerated corrosion (FAC), also termed flow assisted corrosion, is a phenomenon wherein carbon steel components with...
Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
Oct 22, 20215 min read
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An Overview of Eddy Current Testing and its Applications
Thomas R. Hay (PhD, PE) and Suhaib Zafar Introduction Eddy Current Testing (ECT) utilizes the phenomenon of electromagnetic induction — a...
Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
Oct 3, 20214 min read
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Drone-Based Non-Destructive Testing
There are a wide variety of testing methods that are commonly used within the field of non-destructive testing (NDT) including but not...
Thomas R. Hay, Ph.D., P.E
Sep 23, 20214 min read
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Reflections on On-line and Remote Non-destructive Testing Training
Non-destructive testing training courses are often rigorous and time intensive commitments. These courses often follow NDT topical,...
Thomas R. Hay, Ph.D., P.E
Sep 17, 20214 min read
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Non-destructive Testing Options for Welded Steel Bridges
Welded steel bridges consist of many fracture critical members (FCMs) that are require periodic non-destructive testing (NDT) for fatigue...
Thomas R. Hay, Ph.D., P.E
Sep 8, 20215 min read
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Data Redundancy: Confirming Non-destructive Test Results using PAUT and TFM/FMC
Introduction Non-destructive testing (NDT) of welds with phased array ultrasonic testing (PAUT) and more recently the total focusing...
Thomas R. Hay, Ph.D., P.E
Aug 27, 20213 min read
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Aboveground Storage Tank Inspection – A Tale of Four States
TechKnowServ Corporation (TKS) is strategically located to serve New York, New Jersey, Ohio Pennsylvania, and West Virginia owners and...
Thomas R. Hay, Ph.D., P.E
Aug 12, 20214 min read
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Phased Array Inspection of Aerospace Composites
Introduction to Phased Array Testing of Composites Phased array ultrasonic testing (PAUT) of aerospace composites during the fabrication...
Thomas R. Hay, Ph.D., P.E
Jul 9, 20214 min read
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Acoustic Emission Testing of Steel Bridges
Introduction Acoustic emission testing (AET) is a well-established non-destructive testing (NDT) technology commonly used to detect...
Thomas R. Hay, Ph.D., P.E
Jun 29, 20214 min read
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Combining Ultrasonic Testing (UT) and Ground Penetrating Radar (GPR) for Anchor Bolt Testing
Streetlights, traffic signal lighting, traffic signage, and support beams are often installed and secured using steel anchor bolts...
Thomas R. Hay, Ph.D., P.E
Jun 18, 20214 min read
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