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 …

Macroscopic to nanoscopic in situ investigation on yielding mechanisms in ultrafine grained medium Mn steels: role of the austenite-ferrite interface

B Sun, Y Ma, N Vanderesse, RS Varanasi, W Song… - Acta Materialia, 2019 - Elsevier
Ultrafine austenite-ferrite duplex medium Mn steels often show a discontinuous yielding
phenomenon, which is not commonly observed in other composite-like multiphase …

Effect of Nb micro-alloying on austenite nucleation and growth in a medium manganese steel during intercritical annealing

RS Varanasi, B Gault, D Ponge - Acta Materialia, 2022 - Elsevier
The third-generation advanced high strength medium manganese steels aim at high-
performance automobile sheet steel applications. Micro-alloying of steels is considered an …

On the microstructural characteristics influencing the yielding behavior of ultra-fine grained medium-Mn steels

K Steineder, D Krizan, R Schneider, C Béal… - Acta Materialia, 2017 - Elsevier
This paper systematically investigated the influence of microstructural characteristics such
as grain size and morphology on the yielding behavior of a cold rolled medium-Mn Fe-6.4 …

Mechanism of huge Lüders-type deformation in ultrafine grained austenitic stainless steel

S Gao, Y Bai, R Zheng, Y Tian, W Mao, A Shibata… - Scripta Materialia, 2019 - Elsevier
A remarkable Lüders-type localized deformation having a huge Lüders strain of 0.4 was
observed in tensile deformation of an ultra-fine grained austenitic stainless steel fabricated …

The mechanism of dynamic strain aging for type A serrations in tensile curves of a medium-Mn steel

JH Nam, SK Oh, M Park, YK Lee - Acta Materialia, 2021 - Elsevier
The objective of the present study is to clarify the mechanism of dynamic strain aging (DSA)
causing serrations in tensile flow curves of Fe-5.15 Mn-0.15 C-0.37 Si-0.0039 N (wt%) …

Multi-scale characterization of austenite reversion and martensite recovery in a cold-rolled medium-Mn steel

JT Benzing, AK Da Silva, L Morsdorf, J Bentley… - Acta Materialia, 2019 - Elsevier
A medium-Mn steel (Fe-12Mn-3Al-0.05 C wt%) was designed using Thermo-Calc®
simulations to balance the fraction and stacking fault energy of reverted austenite …

Improving strength–ductility synergy in medium Mn steel by combining heterogeneous structure and TRIP effect

X Zhang, R Teng, T Liu, Y Shi, Z Lv, Q Zhou… - Materials …, 2022 - Elsevier
The deformation mechanisms of a novel medium Mn steel (Fe–0.14 C–7.8 Mn–1.65 Al–0.11
Zr, wt%) were investigated through mixed multiphase preservation-intercritical annealing …

[HTML][HTML] Unusual step-like stress flow behavior and mechanisms of a 1.3 GPa grade medium-Mn steel with 51.2% ductility

S Yan, Z Yu, T Liang, S Wang, W Li, X Tao, X Liu - Materials & Design, 2023 - Elsevier
Abstract A Fe-8.9 Mn-1.59 Si-1.0 Al-0.25 C medium-Mn steel have achieved a superior
combination of strength and ductility, ie, the product of strength and elongation (PSE) of 66.5 …

A Critical Review on Medium‐Mn Steels: Mechanical Properties Governed by Microstructural Morphology

J Han - steel research international, 2023 - Wiley Online Library
Medium‐Mn steels have received significant attention from the steel industry as strong
candidate materials for next‐generation advanced high‐strength steels. These steels can be …