Comparison of damaging behavior of oxide scales grown on austeniticstainless steels using tensile test and cyclic thermogravimetry

Abstract

Two austenitic stainless steels, AISI 304L and AISI 303, were submitted to cyclic oxidation and to staticmechanical loading after isothermal oxidation at 1000◦C. Alloy 303 contains ten times more S than 304Land some Mn addition. During the steel process, it formed manganese sulfides that lead to the formationof a less resistant oxide scale. Both alloys showed similar behavior during thermal cycling but breakawayoxidation and intensive spallation occurred much sooner for alloy 303 than for alloy 304L. A correlationcould be drawn between tensile test on preoxidized samples, isothermal and cyclic oxidation.