Stresses in repair welding of high-strength steels—part 2: heat control and stress optimization
Dirk Schröpfer,
Julien Witte,
Arne Kromm
et al.
Abstract:In welding of high-strength steels, e.g. for foundations and erection structures of wind energy plants, unacceptable defects can occasionally be found in the weld area, which should be removed by thermal gouging and subsequent re-welding. High shrinkage restraint of repair welds may lead to crack formation and component failure, predominantly in interaction with degraded microstructures and mechanical properties due to repair cycles. This study aims for elaboration of recommendations for repair concepts approp… Show more
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