Austenite reversion in AISI 201 austenitic stainless steel evaluated via in situ synchrotron X-ray diffraction during slow continuous annealing (2019)
- Authors:
- USP affiliated authors: SANDIM, MARIA JOSÉ RAMOS - EEL ; SUZUKI, PAULO ATSUSHI - EEL ; SANDIM, HUGO RICARDO ZSCHOMMLER - EEL ; SOUZA FILHO, ISNALDI RODRIGUES DE - EEL ; GAUSS, CHRISTIAN - FZEA ; ALMEIDA JUNIOR, DAVISON RAMOS DE - EP
- Unidades: EEL; FZEA; EP
- DOI: 10.1016/j.msea.2019.04.014
- Assunto: MATERIAIS
- Keywords: In situ XRD synchrotron; Austenite reversion; Modified Williamson-Hall; Diffusion-controlled mechanism; AISI 201 steel
- Agências de fomento:
- Language: Inglês
- Abstract: In situ synchrotron X-ray diffraction was used to track real-time austenite reversion in AISI 201 austenitic stainless steel deformed to a true strain of 0.34 under tensile testing. The deformed material was continuously annealed from 100 °C up to 800 °C at a heating rate of 0.05 °C s−1. Phase changes and microstrain partitioning were evaluated by means of the direct comparison method and modified Williamson-Hall plots, respectively. The microstructure of the deformed steel consists of γ, ε- and α′-martensite with volume fractions of 0.24, 0.07, and 0.69, respectively. ε → γ reversion occurs within the temperature range of 150–400 °C through a shear mechanism. The starting (As) and finishing (Af) temperatures for α’ → γ reversion are 486 °C and 770 °C, respectively. Three stages were distinguished for this reaction. By evaluating the crystallite size of both γ- and α′-phases, it can be inferred that α' → γ reversion is diffusion-controlled. Such results were corroborated by thermodynamic simulations to assess the driving force for γ-formation. Microstructural aspects such as γ-nucleation sites, in-grain misorientation, grain refinement, and crystallographic texture were investigated by means of electron backscatter diffraction. Fresh formed ultrafine austenite grains hold different crystallographic orientations than those of untransformed austenite.
- Imprenta:
- Source:
- Título do periódico: Materials science and engineering a-structural materials properties microstructure and processing
- ISSN: 0921-5093
- Volume/Número/Paginação/Ano: v.755, p.267-277, 2019
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
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ABNT
SOUZA FILHO, Isnaldi Rodrigues de et al. Austenite reversion in AISI 201 austenitic stainless steel evaluated via in situ synchrotron X-ray diffraction during slow continuous annealing. Materials science and engineering a-structural materials properties microstructure and processing, v. 755, p. 267-277, 2019Tradução . . Disponível em: https://doi.org/10.1016/j.msea.2019.04.014. Acesso em: 27 abr. 2024. -
APA
Souza Filho, I. R. de, Almeida Junior, D. R., Gauss, C., Sandim, M. J. R., Suzuki, P. A., & Sandim, H. R. Z. (2019). Austenite reversion in AISI 201 austenitic stainless steel evaluated via in situ synchrotron X-ray diffraction during slow continuous annealing. Materials science and engineering a-structural materials properties microstructure and processing, 755, 267-277. doi:10.1016/j.msea.2019.04.014 -
NLM
Souza Filho IR de, Almeida Junior DR, Gauss C, Sandim MJR, Suzuki PA, Sandim HRZ. Austenite reversion in AISI 201 austenitic stainless steel evaluated via in situ synchrotron X-ray diffraction during slow continuous annealing [Internet]. Materials science and engineering a-structural materials properties microstructure and processing. 2019 ;755 267-277.[citado 2024 abr. 27 ] Available from: https://doi.org/10.1016/j.msea.2019.04.014 -
Vancouver
Souza Filho IR de, Almeida Junior DR, Gauss C, Sandim MJR, Suzuki PA, Sandim HRZ. Austenite reversion in AISI 201 austenitic stainless steel evaluated via in situ synchrotron X-ray diffraction during slow continuous annealing [Internet]. Materials science and engineering a-structural materials properties microstructure and processing. 2019 ;755 267-277.[citado 2024 abr. 27 ] Available from: https://doi.org/10.1016/j.msea.2019.04.014 - Micromechanical aspects of the austenite reversion in a high-Mn steel evaluated by in-situ synchrotron X-ray diffraction
- Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture
- In situ synchrotron X-ray evaluation of strain-induced martensite in AISI 201 austenitic stainless steel during tensile testing
- Martensite to austenite reversion in a high-Mn steel: Partitioning-dependent two-stage kinetics revealed by atom probe tomography, in-situ magnetic measurements and simulation
- Austenite reversion in a high-Mn steel:partitioning-dependent two-stage kinetics induced by slow continuous annealing
- The impact of grain-scale strain localization on strain hardening of a high-Mn steel: Real-time tracking of the transition from the γ → ε → α’ transformation to twinning
- Quantification of retained austenite by X-ray diffraction and saturation magnetization in a supermartensitic stainless steel
- Reconstructing the austenite parent microstructure of martensitic steels: A case study for reduced-activation Eurofer steels
- Protrusions formed during primary recrystallization of cross-rolled coarse-grained niobium
- Strain partitioning and texture evolution during cold rolling of AISI 201 austenitic stainless steel
Informações sobre o DOI: 10.1016/j.msea.2019.04.014 (Fonte: oaDOI API)
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