Rodrigo MagnaboscoTAVARES, D. B.FORGAS, A.DE MOURA NETO, C.2023-08-262023-08-262011-09-23MAGNABOSCO, R.; TAVARES, D. B.; FORGAS, A.; DE MOURA NETO, C. Ferrite-to-austenite transformation during cold working of a duplex stainless steel. 7th European Stainless Steel Conference: Science and Market, Proceedings, sept. 2011.https://repositorio.fei.edu.br/handle/FEI/4982Ferrite-austenite duplex stainless steels (DSS) are replacing austenitic stainless steels in many applications due to its high mechanical and corrosion resistance. However, magnetic measurements of ferrite volume fraction using a ferritscope of cold worked samples indicate a reduction in the ferrite content with increasing mechanical work. Considering this fact, this work studies the influence of the cold working on the ferrite/austenite ratio. Samples of UNS S31803 DSS sheet, originally 3 mm thick, were solution-treated at 1175°C for 30 minutes and water quenched; after that, different levels of cold working were applied. Ferrite volume fraction was determined using two distinct methods: quantitative stereology with an optical microscope and magnetic measurements using a ferritscope; a detailed microstructural characterization, including X-ray diffractometry, was conducted to base the discussion of a possible ferrite-to-austenite diffusionless transformation.Acesso RestritoArtigo de eventoCold workingDiffusionless transformationDuplex stainless steelsFerrite quantification