engleski

The influence of heat treatment by annealing on clad plates residual stresses

The influence of applied clad procedure as well as heat treatment by annealing (650 °C/2h) on level and nature of residual stresses was researched. Three clad procedure are used i.e. hot rolling, submerged arc welding (SAW) with strip electrode and explosion welding. The relaxed deformation measurement on clad plate surfaces was performed by applying centre-hole drilling method using special measuring electrical resistance strain gauges (rosettes). After performed measuring, size and nature of residual stresses were determined using analytical method. depending of residual stresses on depth of drilled blind-hole is studied.

residual stresses; heat treated clad plates; centre-blind holes drilling; electrical resistance strain gauges (rosettes)

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