Magnetic Particle Testing Magnetic particle inspection is a nondestructive testing method used for defect detection in ferromagnetic materials. Magnetic Particle Testing is a fast and relatively easy to apply and part surface preparation is not as critical as it is for some other NDT methods. These characteristics make MPI one of the most widely utilized […]
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Liquid Penetrant Testing Penetrant testing is a non destructive testing method that builds on the principle of visual inspection. Penetrant testing increases the see ability of small discontinuities that the human eye might not be able to detect. Liquid Penetrant inspection is a non destructive method of revealing discontinuities that are open to the surfaces […]
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Ultrasonic Testing Ultrasonic Testing is a volumetric Non-Destructive Testing (NDT) method. Unlike surface inspection methods, UT makes it possible to find flaws inside the material. High-frequency sound waves are sent into the material with an ultrasonic transducer. The ultrasound that reflects off defects in the material is made visible in a graph. Ultrasonic Testing gives […]
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Radiographic Testing Radiographic testing usually requires exposing film to X rays or gamma rays that have penetrated a specimen, processing the exposed film, and interpreting the resultant radiograph. There are many variables in these procedures and successful completion of any test is dependent upon understanding and control of the variables. Radiography today is one of […]
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What is NORM? Naturally Occurring Radioactive Material (NORM) –Materials containing radionuclides that exist in the natural environment. NORM is present in very low concentrations in earth’s crust, it is brought to the surface through human activities such as oil and gas operations. Sludge, drilling mud, and pipe scales are examples of materials that can contain […]
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Phased Array Ultrasonic Testing PA uses a multiple-element probe unlike the manual or automatic UT systems, where the output pulse from each element has its own time delay to produce a constructive interference at a specific angle and a specific depth. These time delays can be incremented to sweep the beam over the desired range […]
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Time of Flight Diffraction TOFD technique uses two probes, one for transmitting and the other for receiving The UT beam produces a diffracted signal from the flaw extremities, which act as point sources, as well as a reflected signal. The diffracted signals appear as signals arriving at different times at the receiver. This technique is […]
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Heat Exchanger Tube Inspection Techniques Tubes can be inspected periodically to detect and size discontinuities e.g. pits, erosion, cuts, grooves and wear. Correct technique selection is critical and depends on the tube material (ferromagnetic or non-ferromagnetic) and the type of discontinuities expected. ECT – Eddy Current Testing RFT – Remote Field Testing NFT – Near […]
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