![]() Lamellar tears are subsurface terrace and step-like cracks in the base metal with a basic orientation parallel to the wrought surface. A heel crack is an example of a root crack. Root cracks are caused by the concentrated stress at the notch of the corner of a fillet joint. Ĭold cracks come in several varieties: Toe cracks initiate at the weld toe with dimensional discontinuity where stresses are concentrated. Typical cold cracks that can occur in fillet welds are illustrated in Figure 1.įigure 1: Typical cold cracks in fillet welds. Cold cracks can occur in both butt welds and fillet welds however, this article will focus on those occurring in fillet welds. Cutting/Gouging Equipment & ConsumablesĬold cracks are defined as cracks that occur at temperatures of 200-300☌ or lower in carbon steel and low-alloy steel welds.
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