抄録
Interrupted quenching is considered to be effective in avoiding the quenching distortion and in reducing the quenching stress. The numerical calculation for thermoelastoplastic stresses due to interrupted quenching is carried out, using the procedure of Mendelson's method of successive elastic solutions. A1 and A3 transformations on heating, and martensitic or pearlitic transformation on cooling, are reasonably taken into account as the typical models of phase transformations during interrupted quenching of carbon steel. Mechanical and thermal properties of steel are considered to be temperature dependent. As a result, the residual stresses due to interrupted quenching are verified to be smaller than those from general quenching.
