Skip to main content
Log in

Molecular Dynamics Study of the Point Defect Migration in the Ordered CuPt Alloy during Deformation

  • PHYSICAL FOUNDATIONS OF STRENGTH AND PLASTICITY
  • Published:
Russian Metallurgy (Metally) Aims and scope

Abstract—The migration energies of a vacancy and an interstitial atom in the ordered CuPt alloy are calculated using molecular dynamics simulation. A high interstitial atom migration anisotropy is detected: as a rule, an interstitial atom migrates along the (111) planes containing copper atoms. A similar anisotropy is also observed for the vacancy migration during elastic tensions along these planes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.

Similar content being viewed by others

REFERENCES

  1. E. V. Kozlov, V. M. Dement’ev, N. M. Kormin, and D. M. Shtern, Structures and Stability of Ordered Phases (Izd. Tomsk Univ., Tomsk, 1994).

  2. B. A. Grinberg and V. I. Syutkina, New Ordering Mechanisms in Orered Alloys (Metallurgiya, Moscow, 1984).

    Google Scholar 

  3. V. G. Vaks, “Ordering alloys: structure, phase transitions, and strength,” Soros. Obraz. Zh., No. 3, 115–123 (1997).

  4. V. V. Kulagina, A. A. Chaplygina, L. A. Popova, M. D. Starostenkov, A. I. Potekaev, and A. A. Klopotov, “Structure–phase transformations in Cu–Pt alloys during atomic ordering,” Izv. Vyssh. Uchebn. Zaved., Fiz. 55 (7), 78–87 (2012).

  5. V. A. Starenchenko, S. V. Starenchenko, S. N. Kolupaeva, and O. D. Pantyukhova, “Generation of point defects in L12-ordered alloys,” Izv. Vyssh. Uchebn. Zaved., Fiz., No. 1, 66–70 (2000).

  6. G. M. Poletaev and M. D. Starostenkov, “Interdiffusion mechanism near an interface in the two-dimensional Ni–Al system” Pis’ma Zh. Tekh. Fiz. 29 (11), 30–34 (2003).

  7. G. M. Poletaev, D. V. Novoselova, I. V. Zorya, and M. D. Starostenkov, “Formation of excess free volume in triple junctions during the solidification of nickel,” Fiz. Tverd. Tela 60 (5), 846–850 (2018).

  8. G. M. Poletaev and M. D. Starostenkov, “Structural changes in stacking fault tetrahedra during the absorption of point defects” Pis’ma Zh. Tekh. Fiz. 35 (1), 3–10 (2009).

  9. D. Tingaud and P. Besson, “Point defects and diffusion in ordered alloys: an ab initio study of the effect of vibrations,” Intermetallics 45, 38–45 (2014).

    Article  CAS  Google Scholar 

  10. J. Svoboda and F. D. Fischer, “Anisotropy of interstitial diffusion in bcc-crystals due to stress-induced unequal occupancies of different types of sites,” Int. J. Solids and Struct. 152–153, 66–70 (2018).

    Article  CAS  Google Scholar 

  11. J. Tang, L. Deng, S. Xiao, H. Deng, X. Zhang, and W. Hu, “Chemical ordering and surface segregation in Cu–Pt nanoalloys: the synergetic roles in the formation of multishell structures,” J. Phys. Chem. 119, 21515–21527 (2015).

    Article  CAS  Google Scholar 

  12. K. Yun, Y.-H. Cho, P.-R. Cha, J. Lee, H.-S. Nam, J. S. Oh, J.-H. Choi, and S.-Ch. Lee, “Monte Carlo simulations of the structure of Pt-based bimetallic nanoparticles,” Acta Mater. 60 (12), 4908–4916 (2012).

    Article  CAS  Google Scholar 

  13. G. M. Poletaev, I. V. Zorya, D. V. Novoselova, and M. D. Starostenkov, “Molecular dynamics simulation of hydrogen atom diffusion in crystal lattice of fcc metals,” Int. J. Mater. Res. 108 (10), 785–790 (2017).

    Article  CAS  Google Scholar 

  14. G. M. Poletaev and M. D. Starostenkov, “Contributions of various self-diffusion mechanisms in fcc metals under equilibrium,” Fiz. Tverd. Tela 52 (6), 1075–1082 (2010).

  15. P. Zhao and Y. Shimomura, “Molecular dynamics calculations of properties of the self-interstitials in copper and nickel,” Comput. Mater. Sci., No. 14, 84–90 (1999).

    Article  CAS  Google Scholar 

  16. G. I. Vollenberger, “Point defects” in Physical Metallurgy. Vol. 3. Mechanical Properties of Metals and Alloys, Ed. by R. Cahn (Mir, Moscow, 1987), pp. 5–74.

  17. Y. Liu, L. Zhang, and D. Yu, “Diffusion mobilities in fcc Cu–Au and fcc Cu–Pt alloys,” J. Phase Equilibr. Diffus. 30, 136–145 (2009).

    Article  Google Scholar 

  18. B. Mishra, P. Kiruthika, and A. Paul, “Interdiffusion in the Cu–Pt system,” J. Mater. Sci.: Mater. in Electronics 25, 1778–1782 (2014).

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to G. M. Poletaev.

Additional information

Translated by K. Shakhlevich

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Poletaev, G.M., Starostenkov, M.D., Zorya, I.V. et al. Molecular Dynamics Study of the Point Defect Migration in the Ordered CuPt Alloy during Deformation. Russ. Metall. 2019, 927–931 (2019). https://doi.org/10.1134/S0036029519100227

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0036029519100227

Navigation