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Articles on Non-destructive Testing techniques (NDT)

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A New ASTM Standard for Remote Field Testing (RFT)
Eddy Current inspection - the theory
Examining with Eddy Current Eddy current-based sensors provide precision displacement measurement.
How Ultrasound Works
Human error as a factor of corrosion failures When all the human errors and management system deficiencies are included, the typical machine breakdown is the result of somewhere between five and ten significant contributors
Inspection and Welding Repairs of Pressure Vessels This paper aims to provide an overview of welding inspection and repairs of pressure vessels that can be conducted in Shut downs within Chemical, Refinery, Petrochemicals and Fertilizer industries. It discusses various methods of weld repairs and related activities such as testing after welding - requires free Adobe Acrobat Reader for viewing.
Is Penetrant Testing Still Relevant? While not used as much as it was in the past, penetrant testing still has a place in a wide range of industries and applications.
Leak Testing Verifies Quality With many leak testing methods to choose from, which is the right one?
Magnetic Particle Inspection Gets Revitalized The difficulty with processing ring-shaped parts for aerospace applications is a risk of deformation, or burning or arcing of the part when clamped between contact plates. Correct part processing requires the part to be clamped twice, thus doubling the risk. The part must be turned 90 degrees between the two shots in order to inspect the area that comes in contact with the clamps because an indication may not develop in this area.
NDT Applications: Creep Testers Advance to the Next Level When the market for jet engines began to boom, so did the manufacture of creep test frames.
NDT Applications: Laser Adjusts Motion System of Ultrasonic Scanner The Joint Strike Fighter (JSF), now under construction at Lockheed Martin, is being made in an assembly process like a car, drawing parts from many suppliers to feed a mile-long assembly line.
Phasing in New Array Technology Detecting flaws is a challenge even in the best of times. Interpreting complex patterns on NDT instrument displays can be difficult, and a partís size, geometry and material makeup can add to the problem. Often, it takes a certified inspector to weed out the good from the bad.
The Benefits Of Ultrasonic Testing In Determining Pipe Corrosion Rate, Pitting, And Remaining Service Life
Video Extensometers Boost Performance Next-generation, noncontact video extensometers are replacing traditional contacting extensometers in many material tests.

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