Grain boundary segregation engineering in metallic alloys: A pathway to the design of interfaces

D Raabe, M Herbig, S Sandlöbes, Y Li, D Tytko… - Current Opinion in Solid …, 2014 - Elsevier
Grain boundaries influence mechanical, functional, and kinetic properties of metallic alloys.
They can be manipulated via solute decoration enabling changes in energy, mobility …

Segregation engineering enables nanoscale martensite to austenite phase transformation at grain boundaries: a pathway to ductile martensite

D Raabe, S Sandlöbes, J Millán, D Ponge, H Assadi… - Acta Materialia, 2013 - Elsevier
Abstract In an Fe–9 at.% Mn maraging alloy annealed at 450° C reversed allotriomorphic
austenite nanolayers appear on former Mn decorated lath martensite boundaries. The …

The role of reversed austenite in hydrogen embrittlement fracture of S41500 martensitic stainless steel

YH Fan, B Zhang, HL Yi, GS Hao, YY Sun, JQ Wang… - Acta Materialia, 2017 - Elsevier
Up to now, the precise role of reversed austenite (RA) in hydrogen embrittlement (HE) of
steel is still not fully understood. This work presents new observations and interpretation of …

Difference in transformation behavior between ferrite and austenite formations in medium manganese steel

N Nakada, K Mizutani, T Tsuchiyama, S Takaki - Acta materialia, 2014 - Elsevier
The difference in transformation behavior between the γ→ α and α′→ γ transformations at
the transition temperature T 0 was investigated in 0.1% C–5% Mn steel. The γ→ α …

Nanoscale austenite reversion through partitioning, segregation and kinetic freezing: Example of a ductile 2 GPa Fe–Cr–C steel

L Yuan, D Ponge, J Wittig, P Choi, JA Jiménez… - Acta Materialia, 2012 - Elsevier
Austenite reversion during tempering of a Fe–13.6 Cr–0.44 C (wt.%) martensite results in an
ultra-high-strength ferritic stainless steel with excellent ductility. The austenite reversion …

Orientation of austenite reverted from martensite in Fe-2Mn-1.5 Si-0.3 C alloy

X Zhang, G Miyamoto, Y Toji, S Nambu, T Koseki… - Acta Materialia, 2018 - Elsevier
The orientation of austenite (γ) reverted from lath martensite has been studied using electron
backscatter diffraction (EBSD) in Fe-2% Mn-1.5% Si-0.3% C (mass%) alloy. Two …

Austenite reversion in low-carbon martensitic stainless steels–a CALPHAD-assisted review

F Niessen - Materials Science and Technology, 2018 - Taylor & Francis
Low-carbon martensitic stainless steels with 11.5–16 wt-% Cr and< 0.07 wt-% C are
characterised by high corrosion resistance, strength, ductility and impact toughness …

Impact of reversed austenite on the pitting corrosion behavior of super 13Cr martensitic stainless steel

X Lei, Y Feng, J Zhang, A Fu, C Yin, DD Macdonald - Electrochimica Acta, 2016 - Elsevier
Many attempts in the past have been made to introduce the reversed austenite phase into
Super 13Cr martensitic stainless steel, in order to enhance its mechanical performance, but …

Growth mode of austenite during reversion from martensite in Fe-2Mn-1.5 Si-0.3 C alloy: A transition in kinetics and morphology

X Zhang, G Miyamoto, T Kaneshita, Y Yoshida, Y Toji… - Acta Materialia, 2018 - Elsevier
The kinetics and element partitioning during austenite (γ) reversion from lath martensite in
Fe-2Mn-1.5 Si-0.3 C (mass%) alloy have been investigated. Two different types of γ in terms …

The microstructure evolution and tensile properties of medium-Mn steel heat-treated by a two-step annealing process

DP Yang, PJ Du, D Wu, HL Yi - Journal of Materials Science & Technology, 2021 - Elsevier
Abstract The martensitic hot-rolled 0.3 C-6Mn-1.5 Si (wt%) steel was annealed at 630° C for
24 h to improve its cold rollability, followed by cold rolling and annealing at 670° C for 10 …