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Welding is commonly used to join together metal surfaces, and welds are one of the most common test subjects. Cracking due to strain and fatigue are common weld failure modes. Non-destructive methods including radiography, dye penetrant testing, and Magnetic Particle, Liquid Penetrant, Ultrasonic, Radiographic and Eddy Current Testings are commonly used for examination of welds. Metal components are typically subjected to stress from heat and friction. The resultant strain causes microscopic cracking, deformation from the plastic flow, and hardening of metals. Our NDT inspection training school is located in Houston TX.


Liquid Penetrant Testing is one of the several methods used in nondestructive testing to locate discontinuities that are open to the surface. Typical applications include the detection of cracks, porosity and “through leaks” – leaks that pass from one surface to another read more...


Magnetization is possible for certain materials, it is possible to find out discontinuities by using a medium (iron powder) having the magnetic attraction. Magnetic Particle Inspection is relatively easy and simple test method that can be applied at various stages of manufacturing read more...


Ultrasonic flaw detection has long been the preferred method for nondestructive testing in welding applications. This safe, accurate, and simple technique has pushed ultrasonic to the forefront of inspection technology. This refracted sound wave will bounce off a reflector (discontinuity) in the path of the sound read more...


Eddy current testing is an NDT method that is based on the principles of electromagnetic induction. The flow of electricity, under certain circumstances, can cause magnetism. Magnetism under certain circumstances causes the flow of electricity.read more...


Visual and Optical Testing is one of the essential inspection methods of non-destructive testing. In Visual Inspection, the probing medium is light the portion of the electromagnetic spectrum with a wavelength of 380-770 nm that is capable of exiting the human retina. Visual testing requires adequate read more...


Interpretation of radiograph is the analysis of the shadow image formed on the film by radiation transmission pattern of the test specimen. The image is evaluated in terms of internal and external discontinuities of the specimen. Supporting information such as radiography test parameters, part geometry read more...