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 …

A review of the processing, microstructure and property relationships in medium Mn steels

TWJ Kwok, D Dye - International Materials Reviews, 2023 - journals.sagepub.com
Medium Mn steels are an emerging class of 3rd generation advanced high-strength steels.
These steels have received significant attention due to their high strengths, large ductilities …

High dislocation density–induced large ductility in deformed and partitioned steels

BB He, B Hu, HW Yen, GJ Cheng, ZK Wang, HW Luo… - Science, 2017 - science.org
A wide variety of industrial applications require materials with high strength and ductility.
Unfortunately, the strategies for increasing material strength, such as processing to create …

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 …

Chemical boundary engineering: A new route toward lean, ultrastrong yet ductile steels

R Ding, Y Yao, B Sun, G Liu, J He, T Li, X Wan… - Science …, 2020 - science.org
For decades, grain boundary engineering has proven to be one of the most effective
approaches for tailoring the mechanical properties of metallic materials, although there are …

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 …

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 …

Heterogeneous quenching and partitioning from manganese-partitioned pearlite: retained austenite modification and formability improvement

C Zhang, Z **ong, D Yang, X Cheng - Acta Materialia, 2022 - Elsevier
Increasing quenching temperature in conventional quenching and partitioning (Q&P)
process usually increases the fraction of retained austenite (RA) being dominant by blocky …

Discontinuous strain-induced martensite transformation related to the Portevin-Le Chatelier effect in a medium manganese steel

B Sun, N Vanderesse, F Fazeli, C Scott, J Chen… - Scripta Materialia, 2017 - Elsevier
The correlation between the strain-induced martensite transformation (SIMT) and the
Portevin-Le Chatelier (PLC) effect during tensile testing of a ferrite-austenite duplex medium …