Phase boundary segregation-induced strengthening and discontinuous yielding in ultrafine-grained duplex medium-Mn steels

Y Ma, B Sun, A Schökel, W Song, D Ponge, D Raabe… - Acta Materialia, 2020 - Elsevier
The combination of different phase constituents to realize a mechanical composite effect for
superior strength-ductility synergy has become an important strategy in microstructure …

[HTML][HTML] Microstructures and mechanical properties of steels and alloys subjected to large-strain cold-to-warm deformation

A Dolzhenko, M Tikhonova, R Kaibyshev, A Belyakov - Metals, 2022 - mdpi.com
The effect of large-strain cold-to-warm deformation on the microstructures and mechanical
properties of various steels and alloys is critically reviewed. The review is mainly focused on …

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 …

Crystal plasticity finite element analysis of gradient nanostructured TWIP steel

X Lu, J Zhao, Z Wang, B Gan, J Zhao, G Kang… - International Journal of …, 2020 - Elsevier
Although twinning induced plasticity (TWIP) steels have achieved a satisfactory combination
of high strength and large plasticity, surface nanocrystallization realizes a further …

Deformation structures and strengthening mechanisms in an AlMgScZr alloy

S Malopheyev, V Kulitskiy, R Kaibyshev - Journal of Alloys and Compounds, 2017 - Elsevier
The deformation structures, mechanical properties and strengthening mechanisms of an Al-
5.4 Mg-0.4 Mn-0.2 Sc-0.09 Zr alloy subjected to equal-channel angular pressing (ECAP) for …

Microstructural characterization and strengthening mechanisms of a 12Cr-ODS steel

J Shen, Y Li, F Li, H Yang, Z Zhao, S Kano… - Materials Science and …, 2016 - Elsevier
The microstructure of the 12Cr-ODS steel was characterized by X-ray diffraction (XRD),
scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electron …

Compositive role of refractory element Mo in improving strength and ductility of face-centered-cubic complex concentrated alloys

TJ Jang, YN Lee, Y Ikeda, F Körmann, JH Baek, HS Do… - Acta Materialia, 2023 - Elsevier
Complex concentrated alloys (CCAs) with a face-centered-cubic (FCC) structure exhibit
remarkable mechanical properties, introducing the expansion of compositional space in …

Strength enhancement induced by grain boundary solute segregations in ultrafine-grained alloys

SV Bobylev, NA Enikeev, AG Sheinerman… - International Journal of …, 2019 - Elsevier
A model is proposed explaining enhanced strength of ultrafine-grained alloys that contain
grain boundary (GB) solute segregations. In the framework of the proposed model these …

Local measurement of geometrically necessary dislocation densities and their strengthening effect in ultra-high deformed pearlite

Y Li, S Goto, A Kostka, M Herbig - Materials Characterization, 2023 - Elsevier
The strength of pearlitic wires can be increased by cold-drawing to a world record level for
bulk ductile materials of 7 GPa. The underlying strengthening mechanisms are not fully …

Nonadditive strengthening functions for cold-worked cubic metals: Experiments and constitutive modeling

F Jiang, S Takaki, T Masumura, R Uemori… - International Journal of …, 2020 - Elsevier
Strong metals are greatly desired for lightweight and energy-efficient industrial design. The
strengthening of metals is traditionally accomplished by the additive contributions of various …