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9 Useful Aspects of Magnetic Particle Examination

Magnetic particle testing is used to inspect the defects on surface or very near to the surface of ferromagnetic materials. The principle of this type testing explains that when a magnetic flux is applied to a material, the surface imperfections...

Macroscopic and Microscopic Examination of Weld Hardness

Resistance to plastic deformation is referred to as hardness of the material. A specific type of indenter is used to indent the material and the determined resistance to indentation is the measure of hardness of that material. Hardness value is...

Why is an Impact Toughness Test required in Welding

Charpy V-notch test is used to determine the toughness of the weld output by measuring the energy to fracture a notched test sample. As toughness of steel for specific application must be adequate enough to prevent any brittle fracture loss...

What are the considerations when to tackle a Repair Weld

Weld repairs are applied on an item by mutual agreement to remove weld defects during manufacturing or when the problem arises during service. A thorough assessment is recommended before the implementation of a repair as there are several factors that...

Fracture tests for welder qualification

Fracture tests are conducted to qualify a welder by the examination of fracture surfaces of a weld metal rather than using expensive macroscopic examination. The procedure is applied in order to assess the quality of test weld made by a...
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