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Finite element creep and damage analyses were performed for a series of new, service-aged, fully repaired and partially repaired circumferential welds in CrMoV main steam pipes, under an internal pressure and a uniform axial stress, using simplified axisymmetric models. The material properties used were those of a 1/2Cr1/2Mo1/4V: 2 1/4Cr1Mo weldment at 640 o C. Failure lives and failure positions...
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