top of page
Search


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
605 views
0 comments


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
1,491 views
0 comments


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 24, 20214 min read
922 views
0 comments


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 18, 20214 min read
131 views
0 comments


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 9, 20215 min read
723 views
0 comments


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
286 views
0 comments


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 13, 20214 min read
577 views
0 comments


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
620 views
0 comments


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 30, 20214 min read
457 views
0 comments


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
545 views
0 comments
bottom of page