6. Glossary
Abaque IRSID; IRSID chart
Graphical tool to evaluate the cooling rate between two critical temperatures (often 800°C and 500°C) as a function of welding energy and part thickness.
Arrachement lamellaire; Lamellar tearing
Cracking that occurs in the thickness direction of a rolled sheet, often parallel to its surface, due to perpendicular stresses.
Beurrage; Buttering
Technique consisting in depositing a layer of soft or ductile metal before welding to reduce stresses in the interface zone.
Calamine; Mill scale
Layer of metal oxides formed on the surface of steels during heating, to be removed before welding.
Carbon equivalent; Carbon equivalent
Empirical formula used...
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