Deformation-induced structural transition in body-centred cubic molybdenum

SJ Wang, H Wang, K Du, W Zhang, ML Sui… - Nature …, 2014 - nature.com
Molybdenum is a refractory metal that is stable in a body-centred cubic structure at all
temperatures before melting. Plastic deformation via structural transitions has never been …

Dislocation “bubble-like-effect” and the ambient temperature super-plastic elongation of body-centred cubic single crystalline molybdenum

Y Lu, S Xiang, L Xiao, L Wang, Q Deng, Z Zhang… - Scientific reports, 2016 - nature.com
With our recently developed deformation device, the in situ tensile tests of single crystal
molybdenum nanowires with various size and aspect ratio were conducted inside a …

Microstructures define melting of molybdenum at high pressures

R Hrubiak, Y Meng, G Shen - Nature Communications, 2017 - nature.com
High-pressure melting anchors the phase diagram of a material, revealing the effect of
pressure on the breakdown of the ordering of atoms in the solid. An important case is …

A new regime for mechanical annealing and strong sample-size strengthening in body centred cubic molybdenum

L Huang, QJ Li, ZW Shan, J Li, J Sun, E Ma - Nature communications, 2011 - nature.com
Because of crystal symmetry, body centred cubic (BCC) metals have large differences in
lattice friction between screw and edge dislocations, and manifest generally different …

Ideal strength of bcc molybdenum and niobium

W Luo, D Roundy, ML Cohen, JW Morris Jr - Physical Review B, 2002 - APS
The behavior of bcc Mo and Nb under large strain was investigated using the ab initio
pseudopotential density-functional method. We calculated the ideal shear strength for the …

X-ray diffraction of molybdenum under shock compression to 450 GPa

J Wang, F Coppari, RF Smith, JH Eggert, AE Lazicki… - Physical Review B, 2015 - APS
Molybdenum (Mo) is a body-centered-cubic (bcc) transition metal that has widespread
technological applications. Although the bcc transition elements are used as test cases for …

Constraints on the phase diagram of molybdenum from first-principles free-energy calculations

C Cazorla, D Alfe, MJ Gillan - Physical Review B—Condensed Matter and …, 2012 - APS
We use first-principles techniques to reexamine the suggestion that transitions seen in high-
P experiments on Mo are solid-solid transitions from the bcc structure to either the fcc or hcp …

Revealing the room temperature superplasticity in bulk recrystallized molybdenum

W Chen, X Li, S Jin, L Yang, Y Li, X He… - Nature …, 2023 - nature.com
Body-centered cubic refractory metallic materials exhibit excellent high-temperature
strength, but often suffer from brittle intergranular fracture due to the recrystallization-induced …

Lattice dynamics and thermodynamics of molybdenum from first-principles calculations

ZY Zeng, CE Hu, LC Cai, XR Chen… - The Journal of Physical …, 2010 - ACS Publications
We calculated the phase transition, elastic constants, full phonon dispersion curves, and
thermal properties of molybdenum (Mo) for a wide range of pressures using density …

Core energy and Peierls stress of a screw dislocation in bcc molybdenum: A periodic-cell tight-binding study

J Li, CZ Wang, JP Chang, W Cai, VV Bulatov… - Physical Review B …, 2004 - APS
Using a formulation based on anisotropic elasticity we determine the core energy and
Peierls stress of the a 0∕ 2 [111] screw dislocation in bcc molybdenum at T= 0. We show …