Evaluation of Residual Stress Measurements Before and After Post-Weld Heat Treatment in the Weld Repairs
Anna M Pardowska, John WH Price, Trevor R Finlayson, R Ibrahim
INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009 | IOP PUBLISHING LTD | Published : 2010
Welding repairs are increasingly a structural integrity concern for aging pressure vessel and piping components. It has been demonstrated that the residual stress distribution near repair welds can be drastically different from that of the original weld. Residual stresses have a significant effect on the lifetime performance of a weld, and a reduction of these stresses is normally desirable. The aim of this paper is to investigate residual stresses in various weld repair arrangements using the non-destructive neutron diffraction technique. This research is focused on characterization of the residual stress distribution: (i) in the original weld; (ii) in a shallow toe weld repair; and (iii) a..View full abstract
Awarded by Australian Institute of Nuclear Science and Engineering (AINSE)
This work was conducted with the assistance of an Australian Research Council Grant supported by the Welding Technology Institute of Australia (WTIA). Other assistance has been received from the Monash University Research Fund and the Australian Nuclear Science and Technology Organisation (ANSTO). The Australian Institute of Nuclear Science and Engineering (AINSE) is acknowledged for financial assistance (Award No. AINSTU1604) to enable measurements on TASS to be conducted.