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

J Wang, AHM Faisal, X Li, Y Hong, Q Zhu, H Bei… - Journal of Materials …, 2022 - Elsevier
Body-centred cubic (BCC) metals are known to have unstable intrinsic stacking faults and
high resistance to deformation twinning, which can strongly influence their twinning …

Unstable twin in body-centered cubic tungsten nanocrystals

X Wang, J Wang, Y He, C Wang, L Zhong… - Nature …, 2020 - nature.com
Twinning is commonly activated in plastic deformation of low stacking-fault face-centered
cubic (Fcc) metals but rarely found in body-centered cubic (Bcc) metals under room …

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

J Wang, Z Zeng, CR Weinberger, Z Zhang, T Zhu… - Nature materials, 2015 - nature.com
Twinning is a fundamental deformation mode that competes against dislocation slip in
crystalline solids. In metallic nanostructures, plastic deformation requires higher stresses …

Anti-twinning in nanoscale tungsten

J Wang, Z Zeng, M Wen, Q Wang, D Chen, Y Zhang… - Science …, 2020 - science.org
Nanomaterials often surprise us with unexpected phenomena. Here, we report a discovery
of the anti-twinning deformation, previously thought impossible, in nanoscale body-centered …

Twinning dynamics in nanoscale body-centered cubic tungsten

X Li, Q Zeng, J Wang - Scripta Materialia, 2022 - Elsevier
The non-planar core structure of screw dislocations in body-centered cubic (BCC) metals
strongly influences its twinning dynamics, resulting in a minimum embryo size of six-layers …

Competing twinning mechanisms in body-centered cubic metallic nanowires

Z Shi, CV Singh - Scripta Materialia, 2016 - Elsevier
Twinning in body-centered cubic metals is typically attributed to glide of 1/6< 111>
dislocations originated from material defects. Here we report an alternative mechanism for …

Origin of deformation twinning in bcc tungsten and molybdenum

J Xiao, S Li, X Ma, J Gao, C Deng, Z Wu, Y Zhu - Physical Review Letters, 2023 - APS
Twinning is profuse in bcc transition metals (TMs) except bulk W and Mo. However, W and
Mo nanocrystals surprisingly exhibit twinning during room temperature compression, which …

Atomic-scale observation of nucleation-and growth-controlled deformation twinning in body-centered cubic nanocrystals

L Zhong, Y Zhang, X Wang, T Zhu, SX Mao - Nature Communications, 2024 - nature.com
Twinning is an essential mode of plastic deformation for achieving superior strength and
ductility in metallic nanostructures. It has been generally believed that twinning-induced …

Anomalous deformation twinning in fcc metals at high temperatures

T Sinha, Y Kulkarni - Journal of Applied Physics, 2011 - pubs.aip.org
Nanotwinned structures have shown strong promise as optimal motifs for strength, ductility,
and grain stability in fcc metals—in sharp contrast to their nano-grained counterparts where …

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 …