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Testing of Metals and Methods of Testing of Metals

Testing is for the purpose of providing an engineer with the necessary data for his design calculations and determining whether a material, either in the raw or fabricated form., meets specifications. Its necessary that metals shall be tested so that their mechanical properties and especially their strength properties can be assessed and compared. Testing for mechanical properties will not always reveal the inherent unsoundness of a material. This is particularly true when a large latitude is provided for in the specimen. This necessitates both destructive and non- destructive testing.




Destructive Testing uses various types of mechanical tests such as

 Tensile, 

 Compression, 

 Hardness , 

 Impact , 

 fatigue and 

 creep testing. 


 Non- destructive Testing ,on the other hand, includes 

 visual examination, 

 radiographic , 

 ultrasonic , 

 liquid penetrant and

 magnetic particle testing.


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