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Atomistic dynamics of amorphous porous nitinol

G. A. Nikiforov$^1$, B. N. Galimzyanov$^{1,2}$, A. V. Mokshin$^{1,2}$

Memoirs of the Faculty of Physics 2019. N 4.

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Annotation

Due to the unique combination of physico-mechanical characteristics, titanium nickelide (nitinol) is of great applied interest in various industries. In the present work, the possibility of obtaining of nitinol with a mesoporous structure by rapidly cooling of molten sample to room temperature is considered. Based on the atomistic dynamics simulations data, it was shown that the rapid cooling of the nitinol melt leads to the formation of a porous structure. It has been found that the inner wall of pores is formed predominantly by titanium atoms, which ensure the biocompatibility of nitinol. It is established that the nitinol porosity depends weakly on the cooling rate, whereas the porosity increases linearly with decreasing melt density.

Received: 2019 June 18
Approved: 2019 December 16
PACS:
61.43.Gt Powders, porous materials
61.43.Fs Glasses
61.20.Ja Computer simulation of liquid structure
61.82.Bg Metals and alloys
Rissian citation:
Г. А. Никифоров, Б. Н. Галимзянов, А. В. Мокшин.
Атомистическая динамика аморфного пористого нитинола.
Учен. зап. физ. фак-та Моск. ун-та. 2019. № 4. 1940703.
Authors
G. A. Nikiforov$^1$, B. N. Galimzyanov$^{1,2}$, A. V. Mokshin$^{1,2}$
$^1$Kazan Federal University
$^2$Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences
Issue 4, 2019

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