Hot compression tests were performed on the samples of AISI 630 stainless steel in the temperature range of 900-1050 C and at strain rates of 10–3- 1 s21. Single peak stress flow behavior was observed at all deformation conditions. An irregular relationship was found between the peak point of flow curves and processing condition, i.e., temperature and strain rate. The stress relaxation tests at the temperature range of 900-1050 C revealed that dynamic precipitation (DP) of carbides in the matrix and grain boundaries causes the considered irregularities in the peak stres
