Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture (2019)
- Authors:
- USP affiliated authors: SANDIM, MARIA JOSÉ RAMOS - EEL ; SANDIM, HUGO RICARDO ZSCHOMMLER - EEL ; SOUZA FILHO, ISNALDI RODRIGUES DE - EEL
- Unidade: EEL
- DOI: 10.1016/j.msea.2019.03.116
- Assunto: MATERIAIS
- Keywords: 17.6 wt.% Mn steel; Strain hardening mechanisms; Submicron defects; Local strain partitioning; Microtexture
- Agências de fomento:
- Language: Inglês
- Abstract: The formation of submicron structural defects within austenite (γ), ε- and α′-martensite during cold rolling was followed in a 17.6 wt.% Mn steel. Several probes, including XRD, EBSD, and ECCI-imaging, were used to reveal the complex superposition of the strain hardening mechanisms of these phases. The maximum amount of ε-martensite is observed at a strain of ε = 0.11. At larger strains, the amount of ε decreases suggesting that it precedes the α′-formation (γ → ε → α′). Stacking faults and twins are the main planar defects noticed in ε-martensite. The remaining γ is finely subdivided by stacking faults and twins up to ε = 0.22. From ε = 0.51 on, twinning and multiplication of dislocations are the principal strain hardening mechanisms in austenite. Deformation is accommodated in α′ by the rearrangement of dislocation tangles into dislocation cells plus shear banding at ε = 1.56. During cold rolling, austenite develops a Brass-type texture component, which can be associated to mechanical twinning. ε-martensite presents its basal planes tilted ∼24° from the normal direction towards the rolling direction.The α′-martensite develops and strengthens both, the bcc α- and γ-texture fibers during cold rolling.
- Source:
- Título: Materials science and engineering a-structural materials properties microstructure and processing
- ISSN: 0921-5093
- Volume/Número/Paginação/Ano: v.74, p.636-649, 2019
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
SOUZA FILHO, Isnaldi Rodrigues de et al. Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture. Materials science and engineering a-structural materials properties microstructure and processing, v. 74, p. 636-649, 2019Tradução . . Disponível em: https://doi.org/10.1016/j.msea.2019.03.116. Acesso em: 27 dez. 2025. -
APA
Souza Filho, I. R. de, Sandim, M. J. R., Ponge, D., Sandim, H. R. Z., & Raabe, D. (2019). Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture. Materials science and engineering a-structural materials properties microstructure and processing, 74, 636-649. doi:10.1016/j.msea.2019.03.116 -
NLM
Souza Filho IR de, Sandim MJR, Ponge D, Sandim HRZ, Raabe D. Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture [Internet]. Materials science and engineering a-structural materials properties microstructure and processing. 2019 ;74 636-649.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1016/j.msea.2019.03.116 -
Vancouver
Souza Filho IR de, Sandim MJR, Ponge D, Sandim HRZ, Raabe D. Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture [Internet]. Materials science and engineering a-structural materials properties microstructure and processing. 2019 ;74 636-649.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1016/j.msea.2019.03.116 - 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
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Informações sobre o DOI: 10.1016/j.msea.2019.03.116 (Fonte: oaDOI API)
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