The Effect of Grain Refinement on Solid Particle Erosion of Grade 5 Ti Alloy

  • N. A. KazarinovEmail author
  • A. D. Evstifeev
  • Y. V. Petrov
  • S. A. Atroshenko
  • R. R. Valiev


In this work, the results on solid particle erosion of an ultrafine-grained Grade 5 titanium alloy, which was produced using high-pressure torsion (HPT) technique, are presented. In order to assess influence of the HPT treatment on material’s behavior in erosive conditions, special experimental procedures were developed. The ultrafine-grained (UFG) alloy was tested alongside with a conventional coarse-grained (CG) Grade 5 titanium alloy in equal conditions. The experiments were conducted in a small-scale wind tunnel with corundum particles as an abrasive material. Both particle dimensions and particle velocities were varied in course of the experiments. Erosion resistance of the samples was evaluated in two ways—mass reduction measurements with subsequent gravimetric erosion rate calculations and investigation of samples’ surface roughness after erosion tests. The UFG titanium alloy demonstrated considerable improvement of static mechanical properties (ultimate tensile strength, microhardness), whereas its CG counterpart appeared to be slightly more resistant to solid particle erosion, which might indicate the drop of dynamic strength properties for the HPT-processed material.


erosion high-pressure torsion titanium ultrafine-grained materials 



This work was supported by the Russian Foundation for Basic Research (16-31-60003, 16-31-60047). Y. Petrov acknowledges support from the Russian Science Foundation (17-11-01053) for chapter 4 creation.


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Copyright information

© ASM International 2018

Authors and Affiliations

  • N. A. Kazarinov
    • 1
    Email author
  • A. D. Evstifeev
    • 1
  • Y. V. Petrov
    • 1
    • 2
  • S. A. Atroshenko
    • 2
  • R. R. Valiev
    • 3
  1. 1.Saint Petersburg State UniversitySaint PetersburgRussia
  2. 2.Institute of Problems of Mechanical Engineering RASSaint PetersburgRussia
  3. 3.Ufa State Aviation Technical UniversityUfaRussia

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