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Microstructure of AZ91 alloy deformed by equal channel angular pressing

  • K. N. Braszczyńska-Malik EMAIL logo and L. Froyen
Published/Copyright: February 1, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 8

Abstract

The equal channel angular pressing (ECAP) of the AZ91 magnesium alloy was tested from 553 K to 693 K. The initial grain size of the investigated alloy in homogenized state was about 150 μm. Samples were deformed through a die characterized by an inner contact angle. During the ECAP process the microstructure changed homogeneously and exhibited a decrease of grain size to 10 μm. Transmission electron microscopy allowed the observation of a high dislocation density and large number of twins and shear bands in the deformed material. Some regions in the investigated alloys exhibited a dynamic recrystallisation process.

Keywords: Magnesium alloy; Equal channel angular pressing; Microstructure
Katarzyna N. Braszczyńska –Malik Institute of Materials Engineering Czestochowa University of Technology Al. Armii Krajowej 19, 42-200 Czestochowa, Poland Tel.: +48 343 250 735 Fax: +48 343 250 721

  1. The author (K. N. Braszczyńska-Malik) is grateful for the fellowship from the Foundation for Polish Science.

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Received: 2004-05-18
Accepted: 2005-02-27
Published Online: 2022-02-01

© 2005 Carl Hanser Verlag, München

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https://doi.org/10.3139/ijmr-2005-0158
Keywords for this article
Magnesium alloy; Equal channel angular pressing; Microstructure

Articles in the same Issue

  1. Frontmatter
  2. Articles Basic
  3. Diffusion in molybdenum disilicide
  4. Martensitic transformation, ductility, and shape-memory effect of polycrystalline Ni56Mn25 – xFexGa19 alloys
  5. Mechanical and electrical properties of Ti2SnC dispersion-strengthened copper
  6. Thermodynamic and phase relation study of the Ni–Ge –O system in the solid state
  7. Thermodynamic assessment of Mg–Al–Mn phase equilibria, focusing on Mg-rich alloys
  8. DSC study on the phase decomposition of an Al–Cu alloy occurring during annealing at 403 K
  9. Structure and thermal stability of a melt-quenched single-phase nanocrystalline Hf61Fe39 alloy
  10. Thermodynamic assessment of the ternary Cu–Pb–O system
  11. Combined EELS, EDX, and STEM investigations of Cu-induced nanostrucutures and thin surface layer phases
  12. Articles Applied
  13. Fatigue failure of titanium implants for mandibular reconstruction
  14. Solid state reaction mechanism for the synthesis of La1 – xSrxCoO3–δ (0.1 ≤ x ≤ 0.7)
  15. Dislocation structures in 16MND5 pressure vessel steel strained in uniaxial tension at –196 °C
  16. Microstructure of AZ91 alloy deformed by equal channel angular pressing
  17. The effect of copper on secondary phase precipitation in duplex stainless steel – a thermodynamic calculations approach
  18. Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel
  19. Copper-lithium alloy produced by powder metallurgy procedures and its age-hardening response
  20. Effects of the local microstructures on the mechanical properties in FSWed joints of a 7075-T6 Al alloy
  21. Estimating ternary surface tension for systems with limited solubility
  22. Notifications/Mitteilungen
  23. Personal/Personelles
  24. News/Aktuelles
  25. Conferences/Konferenzen
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