The effect of solid-state phase transformation at low temperatures on residual stresses in
butt welded ferritic thin steel plates has been examined employing a finite element (FE)
code. An algorithm considering the solid-state phase transformation has been developed
and implemented in a thermo-elastic-plastic analysis of an in-house FE code developed at
JWRI Osaka. A number of analyses have been conducted to examine the effect of Martensite
start (Ms) temperature on residual stresses. It has been shown that solid-state phase …