期刊
PHYSICS OF THE SOLID STATE
卷 62, 期 5, 页码 744-747出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1063783420050078
关键词
amorphous titanium nickelide; porosity; cooling rate; atomistic dynamics
资金
- Russian Science Foundation [19-12-00022]
- Russian Science Foundation [19-12-00022] Funding Source: Russian Science Foundation
Amorphous metallic foams are prospective materials due to unique combination of their mechanical and energy-absorption properties. In the present work, atomistic dynamics simulations are performed under isobaric conditions with the pressure p = 1.0 atm in order to study how cooling with extremely high rates (5 x 10(13)-5 x 10(14) K/s) affects the formation of pores in amorphous titanium nickelide. For equilibrium liquid phase, vaporization temperature T-b and the equation of states in the form of rho(T) are determined. It is found that the porosity of this amorphous solid does not depend on cooling at such high rates, whereas the pore morphology depends on the magnitude of the cooling rate. The obtained results will be in demand in study of mechanical properties of amorphous metallic foams with a nanoporous structure.
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