1997 Volume 63 Issue 607 Pages 506-511
As the main causes of strength reduction in welded joints subjected to cyclic thermal transients, attention was given to (1) metallurgical discontinuity in which different deformation responses of base metal and weld metal can result in nonuniform stress and strain across the weldment, (2) structural discontinuity at penetration beads of unfinished welded joints, and (3) degradation of weld metal due to precipitation of dissolved metal. In order to evaluate the first two factors, an elastic follow-up model was applied. Thermal transient strength test results verified that the elastic follow-up model ensures adequate life in elevated-temperature component weldments. The proposed method was proven to be adequate in Type 304 SS, and to have safety margin in FBR grade Type 316 SS.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Transactions of the Japan Society of Mechanical Engineers Series C
Transactions of the Japan Society of Mechanical Engineers Series B
