Flow Accelerated Corrosion (FAC)
Introduction Flow accelerated corrosion (FAC), also termed flow assisted corrosion, is a phenomenon wherein carbon steel components with...
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Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
Oct 3, 20214 min read
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...
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Thomas R. Hay, Ph.D., P.E
Sep 24, 20214 min read
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...
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Thomas R. Hay, Ph.D., P.E
Sep 18, 20214 min read
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,...
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Thomas R. Hay, Ph.D., P.E
Sep 9, 20215 min read
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...
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Thomas R. Hay, Ph.D., P.E
Aug 27, 20213 min read
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...
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Thomas R. Hay, Ph.D., P.E
Aug 13, 20214 min read
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...
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Thomas R. Hay, Ph.D., P.E
Jul 9, 20214 min read
Phased Array Inspection of Aerospace Composites
Introduction to Phased Array Testing of Composites Phased array ultrasonic testing (PAUT) of aerospace composites during the fabrication...
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Thomas R. Hay, Ph.D., P.E
Jun 30, 20214 min read
Acoustic Emission Testing of Steel Bridges
Introduction Acoustic emission testing (AET) is a well-established non-destructive testing (NDT) technology commonly used to detect...
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Thomas R. Hay, Ph.D., P.E
Jun 18, 20214 min read
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...
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