Dynamic deformations tests of Ni3Al based intermetallic alloy by using the split Hopkinson pressure bar technique

  • Pawel Jozwik Military University of Technology Faculty of Advanced Technology and Chemistry
  • Mateusz Kopec Institute of Fundamental Technological Research Polish Academy of Sciences
  • Wojciech Polkowski Foundry Research Institute Centre for High Temperature Studies
  • Zbigniew Bojar Military University of Technology Faculty of Advanced Technology and Chemistry
Keywords: SEM/EBSD analysis, split Hopkinson pressure bar, intermetallic alloys, dynamic deformations,

Abstract


In this work, the Ni3Al-based intermetallic alloy was subjected to room temperature dynamic plastic deformation tests by using a split Hopkinson pressure bar technique. The dynamic compression processes were carried out at strain rates in the range of (1.9×102 ÷ 1×104s-1). A strong impact of applied deformation conditions on microstructure and mechanical properties evolution in the examined Ni3Al intermetallic, was documented. Generally, very high maximum compressive stress values were obtained, reaching 5500 MPa for the sample deformed at the highest strain rate (i.e. 1×104s-1). The results of performed SEM/EBSD evaluation point towards an occurrence of dynamic recovery and recrystallization phenomena in Ni3Al samples deformed at high strain rates.

 

Author Biographies

Pawel Jozwik, Military University of Technology Faculty of Advanced Technology and Chemistry

assistan professor

Mateusz Kopec, Institute of Fundamental Technological Research Polish Academy of Sciences
assistant
Wojciech Polkowski, Foundry Research Institute Centre for High Temperature Studies

research scientist

Zbigniew Bojar, Military University of Technology Faculty of Advanced Technology and Chemistry
professor

References

Y. Wu, Y. Liu, Ch. Li, X. Xia, Y. Huang, H. Li, H. Wang, Journal of Alloys and Compounds, 712 (2017) 687-695.

Published
2019/04/17
How to Cite
Jozwik, P., Kopec, M., Polkowski, W., & Bojar, Z. (2019). Dynamic deformations tests of Ni3Al based intermetallic alloy by using the split Hopkinson pressure bar technique. Journal of Mining and Metallurgy, Section B: Metallurgy, 55(1), 129. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/19506
Issue
Vol. 55 No. 1 (2019)
Section
Original Scientific Paper

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