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Welder’s Handbook
Lamellar Tearing Cracking in the parent metal adjacent to the weld arising from weld stresses in the through thickness direction of the plate. The cracking usually occurs in a stepped configuration, associated with lamellar non- metallic inclusions in the plate, parallel to the working direction. Crater Cracks Crater cracks are hot cracks that develops at the crater on the weld metal by improperly ending the welding arc in the crater of the weld. Crater cracks are clearly visible to the naked eye as star-shaped fissures in the small crater formed at the termination of a weld pass.
Transverse Cracks Cracks in the weld perpendicular to the axis of the weld and sometimes extending beyond the weld into the base metal. Transverse cracks that happen when the metal is not very flexible.
Toe Cracks and Root Cracks Cracking in the parent metal adjacent to the weld arising from weld stresses in the through thickness direction of the plate. The cracking usually occurs in a stepped configuration, associated with lamellar non- metallic inclusions in the plate, parallel to the working direction.
Lamellar Tearing
Underbead Cracks
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