☆ 4.7 Article

Phase transformation induced transitional twin boundary in body-centered cubic metals

ACTA MATERIALIA (2023)

Related references

Note: Only part of the references are listed.

Article Materials Science, Multidisciplinary

Strong size effect on deformation twin-mediated plasticity in body-centered-cubic iron

Ligong Zhao et al.

Summary: By conducting in situ tensile experiments, this study reveals the strong influence of size on twinning behaviors and twin boundary-dislocation interaction mechanisms in body-centered cubic iron nanowires. Above a critical diameter of approximately 2.5 nm, deformation twinning dominates plasticity instead of dislocation slip. Isosceles twin boundaries mediated by 1/12 < 111 > partial dislocations are consistently observed. Two distinct twin boundary-related deformation mechanisms, twin variant re-orientation and twin boundary cracking, are uncovered for nanowires with diameters below and above 17 nm, respectively. Molecular dynamics and statics simulations provide the underlying mechanisms for size-dependent plasticity, which have been overlooked in previous experimental investigations. These findings emphasize the importance of grain size in mediating deformation behaviors in iron and offer possible guidance for optimizing the mechanical performance of single-crystalline and poly-crystalline iron-based materials, such as steel.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2023)

Add to Collection

Article Materials Science, Multidisciplinary

Twinning and antitwinning in body-centered cubic metals

Roman Groger et al.

Summary: Deformation twinning in body-centered cubic (BCC) metals occurs by shearing the crystal along specific planes, and recent studies have shown that antitwinning shear can lead to twinning in some BCC metals. Molecular statics simulations reveal that twinning can occur on both twinning and antitwinning shear in transition metals, but only on twinning shear in alpha-Fe and alkali metals. TEM diffraction pattern analyses further confirm the existence of regular twins along antitwinning shear in Nb and Cr, and exclusively on twinning shear in alpha-Fe.

COMPUTATIONAL MATERIALS SCIENCE (2023)

Add to Collection

Article Materials Science, Multidisciplinary

Discrete twinning dynamics and size-dependent dislocation-to twin transition in body-centred cubic tungsten

Jiangwei Wang et al.

Summary: This study investigates the atomistic level dynamics of twinning in BCC tungsten (W) nanowires using in situ nanomechanical testing. The results show that deformation twins in W nanowires have a minimum size of six-layers and grow in increments of approximately three-layers at a time, in contrast to the layer-by-layer growth of deformation twins in face-centred cubic metals. These findings reveal a strong competition between twinning and slip in W nanowires, with a transition size of around 40 nm. The insights provided by this work are important for understanding the plastic deformation in a broad class of BCC metals and alloys.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

Add to Collection

Article Nanoscience & Nanotechnology

Shock-induced ? martensitic transformation in Nb single crystals

Xiyao Li et al.

Summary: The study systematically investigated the structural and mechanical response of pure BCC Nb under shock loading, revealing shock-induced α martensitic transformation and microstructure interactions between martensite variants along different directions.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2022)

Add to Collection

Article Multidisciplinary Sciences

Hierarchical twinning governed by defective twin boundary in metallic materials

Qi Zhu et al.

Summary: This study investigates the intrinsic deformability of defective twin boundaries in metallic materials and finds that inherent kinks on twin boundaries can facilitate the formation of secondary and hierarchical nanotwins. This defect-driven hierarchical twinning propensity is critically dependent on the kink height and is generally applicable in various metals and alloys.

SCIENCE ADVANCES (2022)

Add to Collection

Article Nanoscience & Nanotechnology

Twinning dynamics in nanoscale body-centered cubic tungsten

Xiyao Li et al.

Summary: The non-planar core structure of screw dislocations in bcc metals strongly affects the twinning behavior, leading to the formation of minimum six-layer {112} planes as embryos and discrete three-layer thickening. By considering the energetically-stable three-layers zonal dislocation as a unit, the study explains the discrete twinning behavior in consistent with the classical twinning theory.

SCRIPTA MATERIALIA (2022)

Add to Collection

Article Materials Science, Multidisciplinary

Shear band mediated ω phase transformation in Nb single crystals deformed at 77 K

Xiyao Li et al.

Summary: The study investigates the omega phase transformation in single-crystal niobium (Nb) under compression at 77K, revealing that the phases nucleate preferentially at the boundaries of 112 shear bands through a BCC-to-omega structural transformation induced by shear stress. Theoretical calculations demonstrate that the formation of a shear transition region can lower the energy barrier of BCC-to-omega phase transformation.

MATERIALS RESEARCH LETTERS (2021)

Add to Collection

Article Nanoscience & Nanotechnology

Formation of {11(2)over-bar2} contraction twins in titanium through reversible martensitic phase transformation

Amir Hassan Zahiri et al.

Summary: This study reports the discovery of a non-conventional twinning mechanism in alpha-titanium through reversible alpha -> omega -> alpha martensitic phase transformations. It demonstrates the important role of the intermediate omega-phase in the twinning process, adding critical details to the existing mechanism of {11 (2) over bar2} twinning. The study also confirms strict orientation relations between the parent alpha-, intermediate omega-, and twin alpha-phases.

SCRIPTA MATERIALIA (2021)

Add to Collection

Article Multidisciplinary Sciences

Revealing extreme twin-boundary shear deformability in metallic nanocrystals

Qi Zhu et al.

Summary: The research reveals the unprecedented shear deformability of twins in nanocrystals, with extreme shear deformability up to 364% through TB sliding. The study shows that sliding-induced plasticity is orientation-dependent and relies critically on geometric inhomogeneities, which has implications for improving metal processing by severe plastic deformation.

SCIENCE ADVANCES (2021)

Add to Collection

Article Multidisciplinary Sciences

Unstable twin in body-centered cubic tungsten nanocrystals

Xiang Wang et al.

NATURE COMMUNICATIONS (2020)

Add to Collection

Article Multidisciplinary Sciences

Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals

Yang He et al.

NATURE COMMUNICATIONS (2020)

Add to Collection

Article Multidisciplinary Sciences

Anti-twinning in nanoscale tungsten

Jiangwei Wang et al.

SCIENCE ADVANCES (2020)

Add to Collection

Article Materials Science, Multidisciplinary

Determination of twinning path from broken symmetry: A revisit to deformation twinning in bcc metals

Yipeng Gao et al.

ACTA MATERIALIA (2020)

Add to Collection

Article Materials Science, Multidisciplinary

Novel deformation twinning system in a cold rolled high-strength metastable-β Ti-5Al-5V-5Mo-3Cr-0.5Fe alloy

Stoichko Antonov et al.

MATERIALIA (2020)

Add to Collection

Article Materials Science, Multidisciplinary

Bending-induced deformation twinning in body-centered cubic tungsten nanowires

Siyuan Wei et al.

MATERIALS RESEARCH LETTERS (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Reversible displacive transformation with continuous transition interface in a metastable β titanium alloy

Lu Qi et al.

ACTA MATERIALIA (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Transitory phase transformations during {10(1)over-bar2} twinning in titanium

Peng Chen et al.

ACTA MATERIALIA (2019)

Add to Collection

Review Materials Science, Multidisciplinary

Interplay of slip and twinning in niobium single crystals compressed at 77 K

Roman Groger et al.

JOURNAL OF MATERIALS RESEARCH (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Novel insight into the formation of α-martensite and ω-phase with cluster structure in metastable Ti-Mo alloys

Mingjia Li et al.

ACTA MATERIALIA (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Direct observation of deformation twinning under stress gradient in body-centered cubic metals

Binbin Jiang et al.

ACTA MATERIALIA (2018)

Add to Collection

Article Chemistry, Physical

Omega transitional structure associated with {112}⟨111⟩ deformation twinning in a metastable beta Ti-Nb alloy, revealed by atomic resolution high-angle annular dark-field scanning transmission electron microscopy

Bin Chen et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

Add to Collection

Article Multidisciplinary Sciences

Amorphous martensite in β-Ti alloys

Long Zhang et al.

NATURE COMMUNICATIONS (2018)

Add to Collection

Article Multidisciplinary Sciences

Consecutive crystallographic reorientations and superplasticity in body-centered cubic niobium nanowires

Qiannan Wang et al.

SCIENCE ADVANCES (2018)

Add to Collection

Article Nanoscience & Nanotechnology

Deformation twinning in vanadium single crystals tested in compression at 77 K

Roman Groger et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2018)

Add to Collection

Article Multidisciplinary Sciences

Discrete shear band plasticity through dislocation activities in body-centered cubic tungsten nanowires

Jiangwei Wang et al.

SCIENTIFIC REPORTS (2018)

Add to Collection

Article Nanoscience & Nanotechnology

Deformation-induced ω-phase transformation in a β-type titanium alloy during tensile deformation

Huihong Liu et al.

SCRIPTA MATERIALIA (2017)

Add to Collection

Article Materials Science, Multidisciplinary

On the mechanism of {332} twinning in metastable β titanium alloys

M. J. Lai et al.

ACTA MATERIALIA (2016)

Add to Collection

Article Nanoscience & Nanotechnology

Competing twinning mechanisms in body-centered cubic metallic nanowires

Zhe Shi et al.

SCRIPTA MATERIALIA (2016)

Add to Collection

Article Materials Science, Multidisciplinary

Origin of shear induced β to ω transition in Ti-Nb-based alloys

M. J. Lai et al.

ACTA MATERIALIA (2015)

Add to Collection

Article Physics, Applied

Deformation of a Ti-Nb alloy containing α-martensite and omega phases

S. Cai et al.

APPLIED PHYSICS LETTERS (2015)

Add to Collection

Article Chemistry, Physical

In situ atomic-scale observation of twinning-dominated deformation in nanoscale body-centred cubic tungsten

Jiangwei Wang et al.

NATURE MATERIALS (2015)

Add to Collection

Article Multidisciplinary Sciences

Phase Transformation in Tantalum under Extreme Laser Deformation

C-H. Lu et al.

SCIENTIFIC REPORTS (2015)

Add to Collection

Article Materials Science, Multidisciplinary

{112} ⟨1 11⟩ Twinning during ω to body-centered cubic transition

S. Q. Wu et al.

ACTA MATERIALIA (2014)

Add to Collection

Article Materials Science, Multidisciplinary

Incipient deformation twinning in dynamically sheared bcc tantalum

C. Q. Chen et al.

ACTA MATERIALIA (2014)

Add to Collection

Article Materials Science, Multidisciplinary

Twin nucleation in Fe-based bcc alloys-modeling and experiments

A. Ojha et al.

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING (2014)

Add to Collection

Article Multidisciplinary Sciences

Deformation-induced structural transition in body-centred cubic molybdenum

S. J. Wang et al.

NATURE COMMUNICATIONS (2014)

Add to Collection

Article Nanoscience & Nanotechnology

Deformation-induced ω phase in nanocrystalline Mo

G. M. Cheng et al.

SCRIPTA MATERIALIA (2013)

Add to Collection

Article Materials Science, Multidisciplinary

Deformation twins in nanocrystalline body-centered cubic Mo as predicted by molecular dynamics simulations

Yongfeng Zhang et al.

ACTA MATERIALIA (2012)

Add to Collection

Article Materials Science, Multidisciplinary

Twinning in bcc metals under shock loading: a challenge to empirical potentials

R. F. Zhang et al.

PHILOSOPHICAL MAGAZINE LETTERS (2011)

Add to Collection

Article Physics, Condensed Matter

Shock-induced phase transformation in tantalum

Luke L. Hsiung

JOURNAL OF PHYSICS-CONDENSED MATTER (2010)

Add to Collection

Article Materials Science, Multidisciplinary

Self-accommodation in Ti-Nb shape memory alloys

Y. W. Chai et al.

ACTA MATERIALIA (2009)

Add to Collection

Review Physics, Applied

On the shock response of cubic metals

N. K. Bourne et al.

JOURNAL OF APPLIED PHYSICS (2009)

Add to Collection

Article Materials Science, Ceramics

Phase-transformation-induced twinning in orthorhombic BaCeO3

Shun-Yu Cheng et al.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2008)

Add to Collection

Article Physics, Condensed Matter

Elastic properties of β, α and ω metastable phases in Ti-Nb alloy from first-principles

J. Sun et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2007)

Add to Collection

Article Materials Science, Multidisciplinary

Shock-induced deformation twinning and omega transformation in tantalum and tantalum-tungsten alloys

LM Hsiung et al.

ACTA MATERIALIA (2000)

Add to Collection

© Peeref 2019-2024. All rights reserved.