Where Is NDT Used?
NDT is used where we need to ensure the serviceability of a specimen. That may be the use of a raw material such as a casting, the use of fabrication such as welding, or the use of a finished part or completed system. We apply NDT where we cannot afford the cost of a failure of the specimen because failure would be financially unacceptable or cause harm to us. The NDT may be cheaper than scrapping a machined part because the machined opened an unacceptable void in the raw material; cheaper than repairing a defective part somewhere away from the site of manufacture; and cheaper than replacing an entire machine because some component failed and ruined the whole thing before acceptable service was complete. Many NDT tests exist to prevent injury or death to the human user of the tested item. This reason becomes more important in our increasingly litigious society, where anyone can bring suit against anyone for almost any reason. Why Is NDT Used? We use NDT because it best solves the probl
