Deformation twinning in body-centered cubic metals and alloys

X Li, Z Zhang, J Wang - Progress in Materials Science, 2023 - Elsevier
Deformation twinning is an important plastic carrier competing with the ordinary dislocation
slip in a broad class of crystalline solids, which critically controls the mechanical properties …

In Situ TEM Characterization and Modulation for Phase Engineering of Nanomaterials

Y Han, L Wang, K Cao, J Zhou, Y Zhu, Y Hou… - Chemical …, 2023 - ACS Publications
Solid-state phase transformation is an intriguing phenomenon in crystalline or noncrystalline
solids due to the distinct physical and chemical properties that can be obtained and modified …

Hierarchical twinning governed by defective twin boundary in metallic materials

Q Zhu, Q Huang, Y Tian, S Zhao, Y Chen, G Cao… - Science …, 2022 - science.org
Dense networks of deformation twins endow metals and alloys with unprecedented
mechanical properties. However, the formation mechanism of these hierarchical twin …

[HTML][HTML] High-cycle fatigue induced twinning in CoCrFeNi high-entropy alloy processed by laser powder bed fusion additive manufacturing

Y Chen, B Li, B Chen, F Xuan - Additive Manufacturing, 2023 - Elsevier
Abstract High-cycle fatigue (R= 0.1, room temperature) induced microstructural evolution in
a laser powder bed fusion (L-PBF) additively manufactured quaternary CoCrFeNi high …

Misorientation-dependent transition between grain boundary migration and sliding in FCC metals

Q Huang, Q Zhao, H Zhou, W Yang - International Journal of Plasticity, 2022 - Elsevier
Grain boundaries (GBs) play a crucial role in the mechanical behaviors of nanocrystalline
materials. The dynamics of GBs depend on a variety of intrinsic and extrinsic factors …

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

X Li, Q Zhao, Y Tian, Q Wang, J Fan, K Song, H Zhou… - Acta Materialia, 2023 - Elsevier
Body-centred cubic (BCC) metals possess unstable intrinsic stacking fault and high
resistance for deformation twinning, which often induce complex twinning dynamics that …

Shear direction induced transition mechanism from grain boundary migration to sliding in a cylindrical copper bicrystal

A Hua, J Zhao - International Journal of Plasticity, 2022 - Elsevier
Control over grain boundary (GB) motion ways provides an effective mean for tailoring the
mechanical and physical properties of nanocrystalline metals. However, shear direction …

Fine grains with high-density annealing twins and precipitates inducing favorable strength and excellent plasticity in laser powder bed fusion-fabricated Inconel 718 …

B Liu, J Xu, Y Gao, Y Hu, X Yang, Y Ding… - Journal of Materials …, 2024 - Elsevier
Tailoring high-density annealing twins in laser powder bed fusion (LPBF)-fabricated alloys
based on their intrinsic residual stress requires high annealing temperatures and/or long …

Evolution of partial dislocation slip–mediated deformation twins in single crystals: a discrete dislocation plasticity model and an analytical approach

C Wang, C Sun, W Cai, L Qian, X Guo… - International Journal of …, 2022 - Elsevier
Deformation twinning is an essential plastic deformation mechanism that realizes the trade–
off between strength and ductility. Twins nucleate and grow by the coordinated slip of partial …

Imaging of atomic stress at grain boundaries based on machine learning

Q Zhao, Q Zhu, Z Zhang, X Li, Q Huang, W Yang… - Journal of the …, 2023 - Elsevier
The mechanical behaviors of crystalline materials, in particular the atomic scale deformation
and failure processes, are strongly influenced by the local atomic stress near crystalline …