抄録
Metallic materials may suffer various kinds of damage, depending on the using conditions and environments. Corrosion damage such as uniform corrosion, local corrosion like pitting or stress corrosion cracking can be observed in various manufacturing plants and is recognized to be one of the main reasons of their troubles. In the present paper the application of nondestructive testing methods, which are generally used, to the corrosion damage detection is reviewed. New ultrasonic testing techniques, although in an experimental stage, are also presented in relation to the detection of stress corrosion cracking.