The binary 50 % metallic melts’ micro crystallization peculiarities in diphase transitional zone model (DTZ) within a diffusive-relaxation procedure

  • Yury A. Baikov Mendeleev University of Chemical Technology of Russia 9, Miusskaya sq., 125047 Moscow, Russian Federation Moscow
  • Nikolai I. Petrov Mendeleev University of Chemical Technology of Russia 9, Miusskaya sq., 125047 Moscow, Russian Federation Moscow
  • Margorita I. Timoshina Moscow Technical University of Communications and Informatics 8а, Aviamotornaya str., 111024 Moscow, Russian Federation
  • Evgeniy V. Akimov Moscow Technical University of Communications and Informatics 8а, Aviamotornaya str., 111024 Moscow, Russian Federation
Keywords: diphase transitional zone,, a growth monomer concentration,, a far-order parameter in binary cubic simple lattice,, the metallic melts’ crystallization rate

Abstract

          Purpose. Consider in the diffusion-relaxation procedure micro crystallization of binary 50 % of metallic melts. Earlier in the well-known experimental works there has been established the Ag–AU alloy disordering when crystallizing from the proper metallic melt. It confi rmed the
possibility of binary metallic crystal disordering presented in given article.
         Methods and methodology. When using so-called the diphase transitional zone there have been estimated some thermodynamic parameters at which a completely disordered binary crystalline phase characterized by simple cubic lattice and stoichiometric composition could be expected.

         Results. In the vicinity of disordering point given binary crystalline phase has been studied. There has been established a physical law according to which some far order parameter tended to zero in a continuous way. A thermodynamic parameter describing the binary crystalline phase disordering has been estimated. There have been analyzed some crystalline phase kinetic peculiarities in the vicinity of disordering point. The completely disordered binary crystalline phase reconstruction law has been analyzed as the time function. The disorder-order process  elaxation periods have been established in the case of simple cubic lattice binary crystalline phase investigated. Moreover, there have been analyzed some kinetic peculiarities connected with completely ordered and disordered binary crystals. Conclusions. It was known within the temperature interval Tk < T < Te, where Tk – crystalline phase disordering temperature, Te – the melt-crystal kinetic equilibrium one usually the completely ordered binary crystalline phase was observed. This effect can be realized only in the diffusive-relaxation procedure.

 

 

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Author Biographies

Yury A. Baikov, Mendeleev University of Chemical Technology of Russia 9, Miusskaya sq., 125047 Moscow, Russian Federation Moscow

Baikov Yury A. – Dr. Sci (Phys.-Math), Full Professor, Physics Department, D. Mendeleev University
of Chemical Technology of Russia, Moscow, Russian Federation; e-mail: nik_petrov@mail.ru.
ORCID iD 0000-0003-3890-2838.

Nikolai I. Petrov, Mendeleev University of Chemical Technology of Russia 9, Miusskaya sq., 125047 Moscow, Russian Federation Moscow

Petrov Nikolai I. – Cand. Sci (Phys.-Math) Associate Professor, Physics Department, D. Mendeleev
University of Chemical Technology of Russia, Moscow, Russian Federation; e-mail: nik_petrov@mail.
ru. ORCID iD 0000-0002-5360-0806.

Margorita I. Timoshina, Moscow Technical University of Communications and Informatics 8а, Aviamotornaya str., 111024 Moscow, Russian Federation

Timoshina Margorita I. – Cand. Sci (Tech.) Associate Professor, Physics Department, Moscow Technical
University of Communications and Informatics, Moscow, Russian Federation; e-mail: ritatoo@
rambler.ru. ORCID iD 0000-0001-8954-0473.

Evgeniy V. Akimov, Moscow Technical University of Communications and Informatics 8а, Aviamotornaya str., 111024 Moscow, Russian Federation

Akimov Evgeniy V. – Lecturer, Physics Department, Moscow Technical University of Communications
and Informatics, Moscow, Russian Federation; e-mail: akimovmtuci@mail.ru. ORCID iD 0000-0001-6339-3495

Published
2019-06-14
How to Cite
Baikov, Y. A., Petrov, N. I., Timoshina, M. I., & Akimov, E. V. (2019). The binary 50 % metallic melts’ micro crystallization peculiarities in diphase transitional zone model (DTZ) within a diffusive-relaxation procedure. Kondensirovannye Sredy I Mezhfaznye Granitsy = Condensed Matter and Interphases, 21(2), 164-181. https://doi.org/10.17308/kcmf.2019.21/755
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