Answer by
deshpandev65yahoocom (149)
Mechanical properties and defects in metals and non metals found through Destructive and non distructive testing methods. In non destructive testing the component is inspected without destructing the part. Some non destructive methods are, X ray, Gamma ray, Ultrasonic testing, magnatic particle testing, various hardness testing methods like brinnel, rockewell or vickers, etc,.