scholarly journals Descriptors for predicting the lattice constant of body centered cubic crystal

2017 ◽  
Vol 146 (20) ◽  
pp. 204104 ◽  
Author(s):  
Keisuke Takahashi ◽  
Lauren Takahashi ◽  
Jakub D. Baran ◽  
Yuzuru Tanaka
Keyword(s):  
Lattice Constant ◽  
Body Centered Cubic ◽  
Cubic Crystal

scholarly journals Stabilizing the body centered cubic crystal in titanium alloys by a nano-scale concentration modulation

2017 ◽  
Vol 700 ◽  
pp. 155-158 ◽  
Author(s):  
H.L. Wang ◽  
S.A.A. Shah ◽  
Y.L. Hao ◽  
F. Prima ◽  
T. Li ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
The Body ◽  
Body Centered Cubic ◽  
Cubic Crystal ◽  
Nano Scale

scholarly journals Simulation Study of Helium Effect on the Microstructure of Nanocrystalline Body-Centered Cubic Iron

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 91 ◽  
Author(s):  
Chunping Xu ◽  
Wenjun Wang
Keyword(s):  
Lattice Constant ◽  
Tensile Strain ◽  
Room Temperature ◽  
Md Simulation ◽  
Uniaxial Tensile ◽  
Body Centered Cubic ◽  
X Ray Diffraction ◽  
X Ray ◽  
Swelling Rate ◽  
Simulation Results

Helium (He) effect on the microstructure of nanocrystalline body-centered cubic iron (BCC-Fe) was studied through Molecular Dynamics (MD) simulation and simulated X-ray Diffraction (XRD). The crack generation and the change of lattice constant were investigated under a uniaxial tensile strain at room temperature to explore the roles of He concentration and distribution played in the degradation of mechanical properties. The simulation results show that the expansion of the lattice constant decreases and the swelling rate increases while the He in the BCC region diffuses into the grain boundary (GB) region. The mechanical property of nanocrystalline BCC-Fe shows He concentration and distribution dependence, and the existence of He in GB is found to benefit the generation and growth of cracks and to affect the strength of GB during loading. It is observed that the reduction of tensile stress contributed by GB He is more obvious than that contributed by grain interior He.

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