Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing

We followed the microstructural evolution of UNS S32205 duplex stainless steel during cold rolling up to 79% reduction in thickness and at early stages of isothermal annealing at 1080ºC. Qualitative analysis of peak broadening and kernel average misorientation (KAM) parameter obtained by X-ray diffr...

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Main Authors: C. Gauss, M.J.R. Sandim, H.R.Z. Sandim
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2025-02-01
Series:Materials Research
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000100204&lng=en&tlng=en
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author C. Gauss
M.J.R. Sandim
H.R.Z. Sandim
author_facet C. Gauss
M.J.R. Sandim
H.R.Z. Sandim
author_sort C. Gauss
collection DOAJ
description We followed the microstructural evolution of UNS S32205 duplex stainless steel during cold rolling up to 79% reduction in thickness and at early stages of isothermal annealing at 1080ºC. Qualitative analysis of peak broadening and kernel average misorientation (KAM) parameter obtained by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD), respectively, indicated a higher work hardening of austenite. Strain-induced martensite was not detected within this strain range by using X-ray diffraction and DC-magnetisation measurements. Two particular rolling thickness reductions were chosen for recrystallisation studies; i.e., 43% and 64%. After annealing for 1 min, primary recrystallisation occurred in ferrite (42% of recrystallised grains for 43% cold rolling), whereas austenite only recovered. For a reduction of 64%, the recrystallised fraction of ferrite did not change significantly, while austenite reached a recrystallised fraction of 43%. Full recrystallisation is noticed after annealing for 3 min for both conditions resulting in a bamboo-like grain structure.
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publishDate 2025-02-01
publisher Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
record_format Article
series Materials Research
spelling doaj-art-7cb043c2a45c4045af7aa035f625beae2025-08-20T02:43:19ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392025-02-012810.1590/1980-5373-mr-2024-0276Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent AnnealingC. Gausshttps://orcid.org/0000-0002-2046-7033M.J.R. Sandimhttps://orcid.org/0000-0002-1953-2520H.R.Z. Sandimhttps://orcid.org/0000-0003-4522-6639We followed the microstructural evolution of UNS S32205 duplex stainless steel during cold rolling up to 79% reduction in thickness and at early stages of isothermal annealing at 1080ºC. Qualitative analysis of peak broadening and kernel average misorientation (KAM) parameter obtained by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD), respectively, indicated a higher work hardening of austenite. Strain-induced martensite was not detected within this strain range by using X-ray diffraction and DC-magnetisation measurements. Two particular rolling thickness reductions were chosen for recrystallisation studies; i.e., 43% and 64%. After annealing for 1 min, primary recrystallisation occurred in ferrite (42% of recrystallised grains for 43% cold rolling), whereas austenite only recovered. For a reduction of 64%, the recrystallised fraction of ferrite did not change significantly, while austenite reached a recrystallised fraction of 43%. Full recrystallisation is noticed after annealing for 3 min for both conditions resulting in a bamboo-like grain structure.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000100204&lng=en&tlng=enDuplex stainless steelUNS S32205Peak broadening analysisRecrystallisationTextureEBSD
spellingShingle C. Gauss
M.J.R. Sandim
H.R.Z. Sandim
Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
Materials Research
Duplex stainless steel
UNS S32205
Peak broadening analysis
Recrystallisation
Texture
EBSD
title Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
title_full Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
title_fullStr Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
title_full_unstemmed Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
title_short Microstructural Evolution of UNS S32205 Duplex Stainless Steel During Cold Rolling and Subsequent Annealing
title_sort microstructural evolution of uns s32205 duplex stainless steel during cold rolling and subsequent annealing
topic Duplex stainless steel
UNS S32205
Peak broadening analysis
Recrystallisation
Texture
EBSD
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000100204&lng=en&tlng=en
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AT mjrsandim microstructuralevolutionofunss32205duplexstainlesssteelduringcoldrollingandsubsequentannealing
AT hrzsandim microstructuralevolutionofunss32205duplexstainlesssteelduringcoldrollingandsubsequentannealing