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

IR Souza Filho, A Dutta, DRA Junior, W Lu… - Acta Materialia, 2020 - Elsevier
Strain partitioning and localization were investigated in a high-Mn steel (17.1 wt.% Mn)
during tensile testing by a correlative probing approach including in-situ synchrotron X-ray …

Defects in parts manufactured by selective laser melting caused by δ-ferrite in reused 316L steel powder feedstock

FC Pinto, IR Souza Filho, MJR Sandim… - Additive Manufacturing, 2020 - Elsevier
The presence of δ-ferrite in 316L stainless steel powder reused several times contributes to
structural defect formation in selective laser melted parts built using the pin support structure …

Future trends on displacive stress and strain induced transformations in steels

A Eres-Castellanos, C Garcia-Mateo, FG Caballero - Metals, 2021 - mdpi.com
Displacive stress and strain induced transformations are those transformations that occur
when the formation of martensite or bainitic ferrite is promoted by the application of stress or …

Microstructural and magnetic characterization of a lean duplex steel: Strain-induced martensite formation and austenite reversion

MJR Sandim, IR Souza Filho, CFGS Mota… - Journal of Magnetism …, 2021 - Elsevier
Strain-induced α′-martensite and austenite reversion in a cold rolled UNS S32304 lean
duplex steel were tracked by means of magnetic measurements, with emphasis on both M s …

Martensite to austenite reversion in a high-Mn steel: Partitioning-dependent two-stage kinetics revealed by atom probe tomography, in-situ magnetic measurements …

IR Souza Filho, AK Da Silva, MJR Sandim, D Ponge… - Acta Materialia, 2019 - Elsevier
Austenite (γ) reversion in a cold-rolled 17.6 wt.% Mn steel was tracked by means of
dilatometry and in-situ magnetic measurements during slow continuous annealing. A …

Austenite reversion in lean duplex steel: microstructural, dilatometric and magnetic characterization

CFGS Mota, LS Aota, HRZ Sandim, KD Zilnyk… - Materials …, 2023 - Elsevier
Abstract Austenite reversion, ie, a'-martensite→ γ phase transformation in UNS S32304 lean
duplex steel was investigated. The material was cold rolled to a true strain (ε) of 1.61 and …

Anomalous magnetization induced by local chemistry fluctuations in Mn-containing α'-martensite

MJR Sandim, LCCM Nagamine, AK da Silva, LS Aota… - Acta Materialia, 2024 - Elsevier
An anomalous increase in magnetization was investigated in a cold-rolled high-Mn TRIP
steel (16.8 wt% Mn) annealed at 350° C for times varying from 5 to 120 min, before the start …

Strain hardening mechanisms during cold rolling of a high-Mn steel: Interplay between submicron defects and microtexture

IR Souza Filho, MJR Sandim, D Ponge… - Materials Science and …, 2019 - Elsevier
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 …

A data-driven approach to model the martensitic transformation temperature in strain-induced metastable austenitic steels

AK Thakur, B Das, SG Chowdhury - Materials Today Communications, 2024 - Elsevier
Strain-induced metastable austenitic stainless steels form an important class of materials in
metallurgical industries for their wide range of applications. These steels undergo austenite …

Correlative Analysis of Microstructural and Magnetic Characteristics of Dual‐Phase High‐Carbon Steel

N Sarmadi, F Pahlevani, S Udayakumar… - Advanced …, 2024 - Wiley Online Library
The microstructural phases in steel influence the magnetic moments due to different
alignments and arrangements of the atoms in the crystal lattice. This study is based on the …