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Thomas R. Hay, Ph.D., P.E
Jun 22, 20234 min read
Water Tank Non-Destructive Testing
In-Service Water Tank Inspection Aboveground steel water storage tanks require internal inspection in accordance with the relevant...
2610
Thomas R. Hay, Ph.D., P.E
May 2, 20234 min read
Non-destructive Testing of Thermite Welds
There are four standard techniques for welding railroad tracks: Flash-butt welding, the gas-pressure welding, the enclosed-arc welding,...
1180
Thomas R. Hay, Ph.D., P.E
Feb 17, 20234 min read
Magnetic Particle Testing
Non-Destructive Testing: Magnetic Particle Testing (MT, MPI) Magnetic particle testing (MT) is a fast, simple, and cost effect...
780
Thomas R. Hay, Ph.D., P.E
Jan 31, 20235 min read
Amusement Park Non-destructive Testing: Conventional and Emerging Non-destructive Testing Techniques
Introduction Non-destructive testing (NDT) of amusement park infrastructure is critical to the safe operation of the broad spectrum of...
6340
Thomas R. Hay, Ph.D., P.E
Jan 6, 20235 min read
Stress Corrosion Cracking and Advanced Non-destructive Testing
Stress corrosion cracking (SCC) in power generation, petrochemical and chemical plants is a perplexing problem to detect with...
5300
Thomas R. Hay, Ph.D., P.E
Dec 2, 20225 min read
Swivel Joint Failure Mechanisms, Failure Analysis, and Non-destructive Testing Options
Swivel joints play an important role in hydraulic fracturing (fracking) and flowback operations in the oil and natural gas industry. ...
3990
Thomas R. Hay, Ph.D., P.E
Nov 18, 20225 min read
Oil and Natural Gas Well Pad Asset Management
Oil and natural gas well pads are omnipresent in the different shale plays across the U.S including the Marcellus and Utica shales in...
6810
Thomas R. Hay, Ph.D., P.E
Nov 8, 20225 min read
High Resolution Mapping of Tank Floor Underside Corrosion using MFL and PAUT Array DLA Technology
Introduction Aboveground storage tank floors can be inspected for bottom side corrosion using several non-destructive testing techniques...
3660
Thomas R. Hay, Ph.D., P.E
Oct 23, 20224 min read
Advanced NDT of Pipelines with GWUT and follow-up PAUT Dual Element Probe Technology
Introduction Pipelines start to deteriorate the moment they commissioned and placed in-service. Pipeline corrosion and metal loss from...
2300
Thomas R. Hay, Ph.D., P.E
Aug 8, 20224 min read
Wood Pole Inspection, Treatment, and Asset Management
Wood Pole Inspection, Treatment, and Asset Management Introduction Utility pole asset management is an exciting market in North America...
4260
Thomas R. Hay, Ph.D., P.E
Jul 1, 20224 min read
Adopting Full Matrix Capture / Total Focusing Method to Complement or Enhance Phased Array UT
The article reviews some of the basic principle of FMC/TFM data acquisition and imaging processes and compares them to standard phased...
3380
Thomas R. Hay, Ph.D., P.E
Jun 20, 20224 min read
Fiberglass Reinforced Plastic Tank Resin Liner Inspection
Fiberglass reinforced plastic (FRP) tanks are common storage tanks for a wide variety of hazardous chemicals from hydrochloric acid to...
8620
Thomas R. Hay, Ph.D., P.E
May 19, 20224 min read
Guided Wave Ultrasonic Testing of Encased Pipeline and Spacer Selection
Guided Wave Ultrasonic Testing of Encased Pipeline and Spacer Selection The performance of guided wave ultrasonic testing (GWUT) or...
1320
Thomas R. Hay, Ph.D., P.E
Apr 29, 20224 min read
Acoustic Emission Testing Data Analysis for Composite Pressure Vessels
Acoustic emission generated by composite pressure vessels, in theory, should be relatively straight forward to analyze and to draw...
2640
Thomas R. Hay, Ph.D., P.E
Apr 15, 20224 min read
Advanced NDT of Aerospace Components: Eddy Current and Linear Phased Array Testing
Introduction Aerospace components draw from a broad range of materials and geometries and typically require advanced nondestructive...
3600
Thomas R. Hay, Ph.D., P.E
Apr 1, 20225 min read
Wood Pole Testing
Wood Pole Testing Thomas Hay Ph.D., P.E. Introduction to Wood Pole Testing Wood pole inspection is a surprisingly large inspection market...
1,1500
Thomas R. Hay, Ph.D., P.E
Mar 11, 20224 min read
Ultrasonic Testing of U.S DOT Cylinders Using Phased Array Ultrasonic Testing
Ultrasonic testing of steel and aluminum U.S. DOT cylinders is required to recertify the cylinders every 5 or 10 years depending on the...
7640
Thomas R. Hay, Ph.D., P.E
Mar 1, 20224 min read
Liquid Penetrant Testing: Fundamentals and NDT Personnel Training
Liquid Penetrant Testing (LPT) is a non-destructive testing (NDT) technique used to detect surface flaws that may not be detectable to...
7080
Thomas R. Hay, Ph.D., P.E
Feb 11, 20224 min read
Phased Array Ultrasonic Testing (PAUT) of Aluminum Ship Hull Welds for Sensitization of Aluminum
Aluminum Sensitization and Non-destructive Testing Aluminum alloy ship hulls are utilized on many commercial and military ship platforms....
5660
Thomas R. Hay, Ph.D., P.E
Jan 13, 20225 min read
Non-destructive Testing of Cement Plant Mills, Gears, and Kilns
Cement plants are large scale operations that require large scale machines to produce the materials required to build a wide variety of...
7880
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