The influence of temperature on the tensile properties of a superduplex stainless steel

Tensile tests, at temperatures ranging between 275 and 475 degreesC were pe rformed in a suporduplex stainless steel EN 1.4410 The dependence of yield stress and ultimate tensile strength un temperature indicates the existence of dynamic strain aging (D-SA). In order tu evaluate the influence of stra in rate un this phenomenon, tests were conducted ill two different strain r ates, both at 325 degreesC, temperature at which DSA is maximum for this ma terial. The results show that the flow stress has an inverse strain rate se nsitivity which confirms the existence of DSA in the steel under study.