Research Article
Grain Size Dependence of Elastic Moduli in Nanocrystalline Tungsten
Table 1
Mean grain size, grain centre distribution, grain boundary atomic fraction , bulk modulus , shear modulus , Young’s modulus , and Poisson’s ratio , calculated from the above values of B and , and average values of Young’s modulus resulting from uniaxial strain tests, for each of the 8 samples studied in this paper. The bulk modulus for tungsten single crystal is 310 GPa with the potential used here, the shear modulus value is 161 GPa, Young’s modulus value is 410 GPa, and Poisson’s ratio value is 0.28.
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