Characterization of a cold-rolled 2101 lean duplex stainless steel

Paola Bassani, Marco Breda, Katya Brunelli, I. Mészáros, Francesca Passaretti, Michela Zanellato, Irene Calliari

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Duplex stainless steels (DSS) may be defined as a category of steels with a two-phase ferritic-austenitic microstructure, which combines good mechanical and corrosion properties. However, these steels can undergo significant microstructural modification as a consequence of either thermo-mechanical treatments (ferrite decomposition, which causes σ- and χ-phase formation and nitride precipitation) or plastic deformation at room temperature [austenite transformation into strain-induced martensite (SIM)]. These secondary phases noticeably affect the properties of DSS, and therefore are of huge industrial interest. In the present work, SIM formation was investigated in a 2101 lean DSS. The material was subjected to cold rolling at various degrees of deformation (from 10 to 80% thickness reduction) and the microstructure developed after plastic deformation was investigated by electron backscattered diffraction, X-ray diffraction measurements, and hardness and magnetic tests. It was observed that SIM formed as a consequence of deformations higher than ~20% and residual austenite was still observed at 80% of thickness reduction. Furthermore, a direct relationship was found between microstructure and magnetic properties.

Original languageEnglish
Pages (from-to)988-995
Number of pages8
JournalMicroscopy and Microanalysis
Volume19
Issue number4
DOIs
Publication statusPublished - Aug 2013

Fingerprint

martensite
Martensite
stainless steels
Stainless steel
austenite
Austenite
microstructure
Microstructure
plastic deformation
Plastic deformation
steels
thermomechanical treatment
hardness tests
Thermomechanical treatment
cold rolling
Steel
Cold rolling
Electron diffraction
Nitrides
nitrides

Keywords

  • Cold deformation
  • EBSD investigation
  • Lean duplex stainless steel
  • Magnetic measurements
  • Strain-induced martensite

ASJC Scopus subject areas

  • Instrumentation

Cite this

Bassani, P., Breda, M., Brunelli, K., Mészáros, I., Passaretti, F., Zanellato, M., & Calliari, I. (2013). Characterization of a cold-rolled 2101 lean duplex stainless steel. Microscopy and Microanalysis, 19(4), 988-995. https://doi.org/10.1017/S1431927613001426

Characterization of a cold-rolled 2101 lean duplex stainless steel. / Bassani, Paola; Breda, Marco; Brunelli, Katya; Mészáros, I.; Passaretti, Francesca; Zanellato, Michela; Calliari, Irene.

In: Microscopy and Microanalysis, Vol. 19, No. 4, 08.2013, p. 988-995.

Research output: Contribution to journalArticle

Bassani, P, Breda, M, Brunelli, K, Mészáros, I, Passaretti, F, Zanellato, M & Calliari, I 2013, 'Characterization of a cold-rolled 2101 lean duplex stainless steel', Microscopy and Microanalysis, vol. 19, no. 4, pp. 988-995. https://doi.org/10.1017/S1431927613001426
Bassani, Paola ; Breda, Marco ; Brunelli, Katya ; Mészáros, I. ; Passaretti, Francesca ; Zanellato, Michela ; Calliari, Irene. / Characterization of a cold-rolled 2101 lean duplex stainless steel. In: Microscopy and Microanalysis. 2013 ; Vol. 19, No. 4. pp. 988-995.
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