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

2019 ◽  
Vol 7 (5) ◽  
pp. 210-216 ◽  
Author(s):  
Siyuan Wei ◽  
Qiannan Wang ◽  
Hua Wei ◽  
Jiangwei Wang
Keyword(s):  
Deformation Twinning ◽  
Body Centered Cubic

Atomistic simulation study of deformation twinning of nanocrystalline body-centered cubic Mo

2017 ◽  
Vol 690 ◽  
pp. 277-282 ◽  
Author(s):  
Xiaofeng Tian ◽  
Dan Li ◽  
You Yu ◽  
Zhen Jiang You ◽  
Tongye Li ◽  
...  
Keyword(s):  
Simulation Study ◽  
Atomistic Simulation ◽  
Deformation Twinning ◽  
Body Centered Cubic

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

2018 ◽  
Vol 155 ◽  
pp. 56-68 ◽  
Author(s):  
Binbin Jiang ◽  
Aidong Tu ◽  
Hao Wang ◽  
Huichao Duan ◽  
Suyun He ◽  
...  
Keyword(s):  
Direct Observation ◽  
Stress Gradient ◽  
Deformation Twinning ◽  
Body Centered Cubic ◽  
Cubic Metals

Molecular dynamics simulations of shock-induced deformation twinning of a body-centered-cubic metal

2013 ◽  
Vol 88 (10) ◽  
Author(s):  
A. Higginbotham ◽  
M. J. Suggit ◽  
E. M. Bringa ◽  
P. Erhart ◽  
J. A. Hawreliak ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Deformation Twinning ◽  
Body Centered Cubic ◽  
Dynamics Simulations

Voids in Irradiated Tungsten and Molybdenum

1969 ◽  
Vol 27 ◽  
pp. 190-191
Author(s):  
Robert C. Rau ◽  
Robert L. Ladd
Keyword(s):  
Melting Point ◽  
Fast Neutron ◽  
Neutron Irradiation ◽  
Elevated Temperatures ◽  
Irradiation Temperature ◽  
The Body ◽  
Face Centered Cubic ◽  
Body Centered Cubic ◽  
Cubic Metals ◽  
Face Centered

Recent studies have shown the presence of voids in several face-centered cubic metals after neutron irradiation at elevated temperatures. These voids were found when the irradiation temperature was above 0.3 Tm where Tm is the absolute melting point, and were ascribed to the agglomeration of lattice vacancies resulting from fast neutron generated displacement cascades. The present paper reports the existence of similar voids in the body-centered cubic metals tungsten and molybdenum.

Supramolecular Assembly of U(IV) Clusters and Superatoms

2020 ◽  
Author(s):  
Ian Colliard ◽  
Gregory Morrosin ◽  
Hans-Conrad zur Loye ◽  
May Nyman
Keyword(s):  
Quantum Dots ◽  
Supramolecular Assembly ◽  
Emergent Properties ◽  
Organic Media ◽  
Body Centered Cubic ◽  
Cluster Anions ◽  
Charge Balance ◽  
Interpenetrating Networks ◽  
Hierarchical Assembly ◽  
Two Parameters

Superatoms are nanometer-sized molecules or particles that can form ordered lattices, mimicking their atomic counterparts. Hierarchical assembly of superatoms gives rise to emergent properties in superlattices of quantum-dots, p-block clusters, and fullerenes. Here, we introduce a family of uranium-oxysulfate cluster anions whose hierarchical assembly in water is controlled by two parameters; acidity and the countercation. In acid, larger Ln<sup>III</sup> (Ln=La-Ho) link hexamer (U<sub>6</sub>) oxoclusters into body-centered cubic frameworks, while smaller Ln<sup>III</sup> (Ln=Er-Lu &Y) promote linking of fourteen U<sub>6</sub>-clusters into hollow superclusters (U<sub>84</sub> superatoms). U<sub>84</sub> assembles into superlattices including cubic-closest packed, body-centered cubic, and interpenetrating networks, bridged by interstitial countercations, and U<sub>6</sub>-clusters. Divalent transition metals (TM=Mn<sup>II </sup>and Zn<sup>II</sup>), with no added acid, charge-balance and promote the fusion of 10 U<sub>6</sub> and 10 U-monomers into a wheel–shaped cluster (U<sub>70</sub>). Dissolution of U<sub>70</sub> in organic media reveals (by small-angle Xray scattering) that differing supramolecular assemblies are accessed, controlled by TM-linking of U<sub>70</sub>-clusters. <br>

scholarly journals Irradiation Behaviors in BCC Multi-Component Alloys with Different Lattice Distortions

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 706
Author(s):  
Yue Su ◽  
Songqin Xia ◽  
Jia Huang ◽  
Qingyuan Liu ◽  
Haocheng Liu ◽  
...  
Keyword(s):  
Single Phase ◽  
Vacuum Arc ◽  
Face Centered Cubic ◽  
Body Centered Cubic ◽  
Chemical Complexity ◽  
Arc Melting ◽  
Vacuum Arc Melting ◽  
Lattice Distortions ◽  
Face Centered ◽  
Displacement Per Atom

Recently, the irradiation behaviors of multi-component alloys have stimulated an increasing interest due to their ability to suppress the growth of irradiation defects, though the mostly studied alloys are limited to face centered cubic (fcc) structured multi-component alloys. In this work, two single-phase body centered cubic (bcc) structured multi-component alloys (CrFeV, AlCrFeV) with different lattice distortions were prepared by vacuum arc melting, and the reference of α-Fe was also prepared. After 6 MeV Au ions irradiation to over 100 dpa (displacement per atom) at 500 °C, the bcc structured CrFeV and AlCrFeV exhibited significantly improved irradiation swelling resistance compared to α-Fe, especially AlCrFeV. The AlCrFeV alloy possesses superior swelling resistance, showing no voids compared to α-Fe and CrFeV alloy, and scarce irradiation softening appears in AlCrFeV. Owing to their chemical complexity, it is believed that the multi-component alloys under irradiation have more defect recombination and less damage accumulation. Accordingly, we discuss the origin of irradiation resistance and the Al effect in the studied bcc structured multi-component alloys.

Deformation twinning in explosively-driven tantalum

2012 ◽  
Vol 556 ◽  
pp. 155-163 ◽  
Author(s):  
V. Livescu ◽  
J.F. Bingert ◽  
T.A. Mason
Keyword(s):  
Deformation Twinning
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