On the ultimate tensile strength of tantalumTensile strengthSpallNon-equilibrium molecular dynamicsTantalumStrain rate, temperature, and microstructure play a significant role in the mechanical response of materials. Using non-equilibrium molecular dynamics simulations, we characterize the ductile tensile ...
The dependencies of the ultimate tensile stress and the uniform elongation on the UFG skeleton fraction are plotted in Fig. 7a and b, respectively, for seven material models (\(q=\)0, 0.1, 0.25, 0.5, 0.75, 0.9 and 1) for each of 19 different volumetric percentages of the UFG phase. ...
threshold at the theoretical strength. Sapphire′s strength asymptotes to the theoretical strength of the strongest direction in its lattice. Finally, the fourth-power dependence of strain rate upon stress appears to be a consequence of the homogeneous flow in the strong shock regime. This review s...
Materials lacking plastic deformation at a given temperature will break when their ultimate tensile/compressive strength is exceeded. For a safe use of the tooling, their application within the materials elastic limit before reaching the ultimate strength is necessary (Table 1). The size of the ...
Correlation between yield stress and hardness of nickel–silicon–boron-based alloys by nanoindentation AbstractBased on the relation proposed by Tabor in 1951, which connects the ultimate tensile strength and the yield stress of classical materials to the Br... VA Şerban,C Codrean,M Vodă,....
The present work successfully incorporated the composite surface matrices of tantalum carbide (TaC) and niobium carbide (NbC) hybrids and mono-nanoparticles into wrought AA2024 using friction stir processing (FSP). The mechanical, electrical, and microst
Thus, these impurities are considered one of the main causes of intergranular fracture and exert a significant effect on the fracture toughness of tungsten14. Adding small amounts of rare earth ele- ments, such as zirconium (Zr), hafnium (Hf), and tantalum (Ta), can strengthen GBs to a ...
PTs manufactured by CVD/CVI with the modulus of elasticity of 2.5–3.9 GPa show ultimate compressive strength in the range of 50–70 MPa and yield the strength of 35–51 MPa and tensile strength of 63 MPa23,34. PTs made by powder metallurgy have the modulus of elasticity of 2.05–2.37 ...
Considering the special stress condition in the TCT test, this value coincides roughly with the ultimate tensile strength of 450 MPa as obtained for (highly deformed) copper (Ref 8, 19, 20). In view of these results, the real cohesive strength of cold-sprayed coatings may be expressed ...
Bulk metallic glasses (BMGs) are a subject of interest due to their superior specific properties such as low coefficient of friction, high strength, large ductility in bending, high elastic modulus, high microhardness, and high resistance to corrosion, oxidation, wear, and so on. However, BMGs...