CTOD toughness evaluation of hyperbaric repair welds with shallow and deep notched specimens
1992
The CTOD toughness evaluation of repaired weld joints (given two weld deposits, complex mechanical heterogeneity and high residual stresses) requires modification of commonly used specimen geometry and testing procedure. This paper presents the results of the SENB specimens with shallow (a/W=0.16) and deep notches (a/W=0.5) extracted from 30 mm thick multipass submerged arc welded (SAW) joints which were repaired with hyperbaric (16 bar) welding process at the toe region of the original SAW weld deposit.
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