Types, sizes and distribution of internal imperfections such as porosities, cracks, lack of fusion, lack of penetration and solid inclusions can be determined on the fracture surface of welded metallic materials, least 2 mm thickness,

 

Standards:

TS EN ISO 12737: Metallic materials – Determination of plane-strain fracture toughness

TS EN ISO 9017: Destructive tests on welds in metallic materials – Fracture test

ASME IX, AWS, API1104