DIFFERENCES IN THE LOCAL ATOMIC STRUCTURE OF THE AMORPHOUS Ti2NiCu ALLOYS PRODUCED BY MELT QUENCHING AND LARGE PLASTIC DEFORMATIONS

  • Roman Sundeev I.P. Bardin Central Research Institute of Ferrous Metallurgy
  • Anna Shalimova I.P. Bardin Central Research Institute of Ferrous Metallurgy
  • Aleksandr Glezer National University of Science and Technology “MISIS”
  • Aleksey Veligzhanin National Research Center “Kurchatov Institute”
Keywords: amorphous state, melt quenching, large plastic deformation, high pressure torsion, phase transformation, amorphization

Abstract

At present, systematic studies of structural regularities inherent in metallic materials in the process of large plastic deformations are actively proceeding. In particular, by high-pressure torsion, the authors obtained many interesting and important results. It is known, that some alloys and intermetallic compounds during the high-pressure torsion change from a crystalline to an amorphous state. However, in the literature, there is no answer to the issue of similarity or difference in the local structure of amorphous states of the same alloy produced by various methods (after melt quenching and high-pressure torsion).

In the paper, using the EXAFS spectroscopy, X-ray diffraction analysis, and transmission electron microscopy, the authors studied the local atomic structure of the amorphous Ti2NiCu alloy produced by melt quenching and high-pressure torsion. It is shown that the local atomic structure of the amorphous phases produced by melt quenching and high-pressure torsion is not identical. The amorphous structure of the Ti2NiCu alloy produced by the high-pressure torsion compresses and becomes improved under the action of significant deformation effects as the strain increases at room temperature to n=6. The authors identified that the radii of the first coordination spheres of pairs of atoms of the Cu-Ti and Ni-Ti types, as well as the corresponding coordination numbers, depend on both the method of obtaining the amorphous state and the value of high-pressure torsion. The interatomic Cu-Ti and Ni-Ti distances slightly increase after high-pressure torsion at n=4 compared to the state after melt quenching. The increase in the strain up to n=6 causes the decrease in the interatomic Cu-Ti and Ni-Ti distances as compared to the state after melt quenching.

Author Biographies

Roman Sundeev , I.P. Bardin Central Research Institute of Ferrous Metallurgy

PhD (Physics and Mathematics), senior researcher

Anna Shalimova , I.P. Bardin Central Research Institute of Ferrous Metallurgy

PhD (Physics and Mathematics), leading researcher

Aleksandr Glezer , National University of Science and Technology “MISIS”

Doctor of Sciences (Physics and Mathematics), Professor, chief researcher

Aleksey Veligzhanin , National Research Center “Kurchatov Institute”

PhD (Physics and Mathematics), senior researcher

References

1. Luborsky F.E., eds. Amorphous Metallic Alloys. London, Elsevier Ltd., 1983. 496 p.
2. Sowjanya M., Kishen Kumar Reddy T. Cooling wheel features and amorphous ribbon formation during planar flow melt spinning process. Journal of Materials Processing Technology, 2014, vol. 214, no. 9, pp. 1861–1870.
3. Masumoto T., Maddin R. Structural stability and mechanical properties of amorphous metals. Materials Science and Engineering, 1975, vol. 19, no. 1, pp. 1–24.
4. Zhilyaev A.P., Langdon T.G. Using high-pressure torsion for metal processing: Fundamentals and applications. Progress in Materials Science, 2008, vol. 53, no. 6, pp. 893–979.
5. Sundeev R.V., Glezer A.M., Shalimova A.V. Crystalline to amorphous transition in solids upon high-pressure torsion. Journal of Alloys and Compounds, 2014, vol. 611, pp. 292–296.
6. Huang J.Y., Zhu Y.T., Liao X.Z., Valiev R.Z. Amorphization of TiNi induced by high-pressure torsion. Philosophical Magazine Letters, 2004, vol. 84, no. 3, pp. 183–190.
7. Li J.-T., Miao W.-D., Hu Y.-L., Zhen Y.-J., Cui L.-S. Amorphization and crystallization characteristics of TiNi shape memory alloys by severe plastic deformation. Frontiers of Materials Science in China, 2009, vol. 3, no. 3, pp. 325–328.
8. Nakayma H., Tsuchiya K.K., Umemoto M. Crystal refinement and amorphization by cold rolling in TiNi shape memory alloys. Scripta Materialia, 2001, vol. 44, no. 8-9, pp. 1781–1785.
9. Zhang F.X., Wang W.K. Amorphization of Al-Cu-Fe quasicrystalline alloys by mechanical milling. Journal of Alloys and Compounds, 1996, vol. 240, no. 1-2, pp. 256–260.
10. Tatyanin E.V., Kurdjumov V.G. Nucleation of the deformation induced amorphous phase at twin boundaries in TiNi alloy. Physica Status Solidi (A), 1990, vol. 121, no. 2, pp. 455–459.
11. Zeldovich V.I., Frolova N.Yu., Pilyugin V.P., Gundyrev V.M., Patselov A.M. Formation of amorphous structure in titanium nickelide under plastic deformation. Physics of Metals and Metallography, 2005, vol. 99, no. 4, pp. 425–434.
12. Shelyakov A.V., Sitnikov N.N., Menushenkov A.P., Rizakhanov R.N., Ashmarin A.A. Forming the two-way shape memory effect in TiNiCu alloy via melt spinning. Bulletin of the Russian Academy of Sciences: Physics, 2015, vol. 79, no. 9, pp. 1134–1140.
13. Sundeev R.V., Shalimova A.V., Glezer A.M., Pechina E.A., Gorshenkov M.V., Nosova G.I. In situ observation of the “crystalline⇒amorphous state” phase transformation in Ti2NiCu upon high-pressure torsion. Materials Science and Engineering A, 2017, vol. 679, pp. 1–6.
14. Shelyakov A.V., Sitnikov N.N., Menushenkov A.P., Korneev A.A., Rizakhanov R.N., Sokolova N.A. Fabrication and characterization of amorphous–crystalline TiNiCu melt-spun ribbons. Journal of Alloys and Compounds, 2013, vol. 577, pp. 251–254.
15. Chernyshov A.A., Veligzhanin A.A., Zubavichus Y.V. Structural materials science end-station at the Kurchatov Synchrotron Radiation Source: Recent instrumentation upgrades and experimental results. Nuclear Instruments Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009, vol. 603, no. 1-2, pp. 95–98.
16. Ravel B., Newville M. ATHENA, ARTEМIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT. Journal of Synchrotron Radiation, 2005, vol. 12, no. 4, pp. 537–541.
17. Ankudinov A.L., Ravel B., Rehr J.J., Conradson S.D. Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure. Physical Review B, 1998, vol. 58, no. 12, pp. 7565–7576.
18. Sitepu H. Texture and structural refinement using neutron diffraction data from molybdite (MoO3) and calcite (CaCO3) powders and a Ni-rich Ni50.7Ti49.30 alloy. Powder Diffraction, 2009, vol. 24, no. 4, pp. 315–326.
19. Zhang T., Inoue A. Density, thermal stability and mechanical properties of Zr–Ti–Al–Cu–Ni bulk amorphous alloys with high Al plus Ti concentrations. Materials Transactions, JIM, 1998, vol. 39, no. 8, pp. 857–862.
20. Louzguine-Luzgin D.V. Vitrification and devitrification processes in metallic glasses. Journal of Alloys and Compounds, 2014, vol. 586, no. Suppl. 1, pp. 2–8.
21. Louzguine-Luzgin D.V., Seki I., Wada T., Inoue A. Structural relaxation, glass transition, viscous formability, and crystallization of Zr-Cu–based bulk metallic glasses on heating. Metallurgical and Materials Transactions A, 2012, vol. 43, pp. 2642–2648.
22. Sundeev R.V., Glezer A.M., Menushenkov A.P., Shalimova A.V., Chernysheva O.V., Umnova N.V. Effect of high pressure torsion at different temperatures on the local atomic structure of amorphous Fe-Ni-B alloys. Materials and Design, 2017, vol. 135, pp. 77–83.
Published
2019-12-30
Section
Technical Sciences