Fundamentals and application of solid-state phase transformations for advanced high strength steels containing metastable retained austenite

Z Dai, H Chen, R Ding, Q Lu, C Zhang, Z Yang… - Materials Science and …, 2021 - Elsevier
Over many decades, significant efforts have been made to improve the strength-elongation
product of advanced high strength steels (AHSSs) by creating tailored multi-phase …

Physical metallurgy of medium-Mn advanced high-strength steels

B Sun, A Kwiatkowski da Silva, Y Wu, Y Ma… - International …, 2023 - Taylor & Francis
Steels with medium manganese (Mn) content (3∼ 12 wt-%) have emerged as a new alloy
class and received considerable attention during the last decade. The microstructure and …

In-situ observation of microcrack initiation and damage nucleation modes on the HAZ of laser-welded DP1180 joint

J Xue, W Guo, J Yang, M Xia, G Zhao, C Tan… - Journal of Materials …, 2023 - Elsevier
In-situ SEM can intuitively observe the changes in microstructure and microcrack initiation
during the deformation process of the specimen. In this paper, the microstructural evolution …

The dual role of TRIP effect on ductility and toughness of a medium Mn steel

C Hu, CP Huang, YX Liu, A Perlade, KY Zhu… - Acta Materialia, 2023 - Elsevier
In this study, the tensile and fracture behaviors of a medium Mn steel fabricated by two
thermomechanical processes, namely intercritical annealing (IA) and room-temperature …

Microstructural evolution and strain hardening behavior of a novel two-stage warm rolled ultra-high strength medium Mn steel with heterogeneous structures

Y Zou, H Ding, Y Zhang, Z Tang - International Journal of Plasticity, 2022 - Elsevier
A heterostructured medium Mn steel with duplex phases (ferrite and austenite) and multiple
morphologies (lath-typed and granular) is fabricated by a novel two-stage warm rolling …

[HTML][HTML] Circular steel for fast decarbonization: Thermodynamics, kinetics, and microstructure behind upcycling scrap into high-performance sheet steel

D Raabe, M Jovičević-Klug, D Ponge… - Annual Review of …, 2024 - annualreviews.org
Steel production accounts for approximately 8% of all global CO2 emissions, with the
primary steelmaking route using iron ores contributing approximately 80% of those …

Effect of pre-existed austenite on austenite reversion and mechanical behavior of an Fe-0.2 C-8Mn-2Al medium Mn steel

R Ding, Z Dai, M Huang, Z Yang, C Zhang, H Chen - Acta Materialia, 2018 - Elsevier
Abstract A Quenching-Austenite Reversion Treatment (Q-ART) is used to process an Fe-0.2
C-8Mn-2Al (all in wt.%) medium Mn steel to investigate the effect of pre-existed austenite on …

Ensuring combination of strength, ductility and toughness in medium-manganese steel through optimization of nano-scale metastable austenite

J Hu, LX Du, W Xu, JH Zhai, Y Dong, YJ Liu… - Materials …, 2018 - Elsevier
Medium-Mn steel was innovatively designed in terms of alloying elements for medium to
heavy steel plates to obtain combination of high strength, good ductility, and excellent low …

Revealing fracture mechanisms of medium manganese steels with and without delta-ferrite

B Sun, D Palanisamy, D Ponge, B Gault, F Fazeli… - Acta Materialia, 2019 - Elsevier
Medium Mn steels possess a composite like microstructure containing multiple phase
constituents like metastable austenite, ferrite, δ-ferrite and α′-martensite with a wide range …

High impact toughness of CrCoNi medium-entropy alloy at liquid-helium temperature

M Yang, L Zhou, C Wang, P Jiang, F Yuan, E Ma, X Wu - Scripta Materialia, 2019 - Elsevier
We show that face-centered-cubic CrCoNi medium-entropy alloy sustains a Charpy V-notch
impact toughness (AK) as high as 340 J at 4 K. Deformation twinning (DT) is rendered …