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What is Preventing Lamellar Tearing in Welding about?

Lamellar tearing occurs in three phases: initiation at inclusions, cracking as voids join, and complete material tearing. It is mainly an issue for T-butt and heavy fillet welds where shrinkage strains act through the thickness of the plate. Lamellar tearing requires susceptible rolled plate with inclusions, high transverse stresses along the through-thickness direction, and certain weld orientations. Prevention methods include using low hydrogen electrodes, welding sequences that reduce through-thickness s

Author

Raghuram Bathula

Language

EN