Determination of phases and residual stresses after martensitic transformation induced by rolling in 304L stainless steel

Abstract

The 304L austenitic stainless steel is susceptible to deformation induced martensitic transformation. This phase transformation depends on the temperature as well as on the mode, rate and level of deformation. In this work the phases and residual stresses of a 304L TRIP steel where martensitic transformation was induced by cold rolling were investigated by X-ray diffraction XRD. The analyses were performed for different sample thicknesses. The results showed that the phase composition and the residual stresses are strongly dependent on sample thickness. All samples showed a compressive residual stress.

Overview of Surface Modification Strategies for Improving the Properties of Metastable Austenitic Stainless Steels

“…Investigating the residual stresses in austenitic steel is one of the most important parts of any plastic deformation, and by examining these stresses, the effect of operations on steel can be achieved to some extent. Alvez [195] has achieved valuable results by conducting numerous experiments on AISI 304L SS, a grade which is prone to martensitic deformation caused by deformation. This phase change depends on the temperature as well.…”