Question

Lamellar tears in weldments are usually found:

a) In the heat affected zone area.

b) In the root pass.

c) In thin wall fabrications welded with GMAW.

d) In the weld centerline.

Answer 1

Lamellar tears typically occur in the heat affected zone of a weldment, where the microstructure of the base metal is altered by welding.

Step-by-step explanation:

Lamellar tears in weldments are typically found in the heat affected zone (HAZ) area, which is the region of the base metal that has not melted, but whose microstructure and properties have been altered by the welding process. Lamellar tearing occurs due to the presence of non-metallic inclusions and strain induced by welding in materials that are susceptible. This form of tearing is characterized by a step-like appearance on a fractured surface and occurs parallel to the weld fusion line. The correct answer to the question is that lamellar tears in weldments are usually found in the heat affected zone area.