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Characterization of hot-deformation behaviour of Zircaloy-2: a comparison between kinetic analysis and processing maps

  • Jayantakumar Chakravartty EMAIL logo , Rajeev Kapoor and Srikumar Banerjee
Published/Copyright: January 28, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 6

Abstract

The hot deformation mechanisms in Zircaloy-2 with transformed initial microstructure are evaluated in the temperature range 650 to 950 °C and strain rate range 10–3 to 100 s–1 according to the principles of thermally activated deformation (kinetic analysis). Depending on the strain rate and temperature, various deformation mechanisms, namely dynamic recystallization, dynamic recovery, and superplasticity, have been identified on the basis of activation energy, stress exponent (or strain-rate sensitivity), metallography on deformed specimens, and from the nature of the stress–strain curve. An attempt has also been made to correlate the compression test data with those of extrusion data using kinetic analysis. Finally the results of the kinetic analysis have been compared with the predictions of processing maps generated earlier.

Keywords: Zircaloy-2; Kinetic analysis; Processing maps; Extrusion experiments; Hot deformation mechanisms
Jayantakumar Chakravartty Materials Science Division Bhabha Atomic Research Centre, Mumbai-400085, India Tel.: +91 22 2559 3816 Fax: +91 22 2550 5151

Dedicated to Professor Wolfgang Blum on the occasion of his 65th birthday

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Received: 2005-01-19
Accepted: 2005-03-11
Published Online: 2022-01-28

© 2005 Carl Hanser Verlag, München

Articles in the same Issue

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  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Identifying creep mechanisms in plastic flow
  6. A unified microstructural metal plasticity model applied in testing, processing, and forming of aluminium alloys
  7. Implications of non-negligible microstructural variations during steady-state deformation
  8. Tertiary creep of metals and alloys
  9. Interactions between particles and low-angle dislocation boundaries during high-temperature deformation
  10. Strain-rate sensitivity of ultrafine-grained materials
  11. Transient plastic flow at nominally fixed structure due to load redistribution
  12. Vacancy concentrations determined from the diffuse background scattering of X-rays in plastically deformed copper
  13. Effect of heating rate in α + γ dual-phase field on lamellar microstructure and creep resistance of a TiAl alloy
  14. About stress reduction experiments during constant strain-rate deformation tests
  15. Finite-element modelling of anisotropic single-crystal superalloy creep deformation based on dislocation densities of individual slip systems
  16. Variational approach to subgrain formation
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  19. Creep properties at 125 °C of an AM50 Mg alloy modified by Si additions
  20. Dependence of mechanical strength on grain structure in the γ′ and oxide dispersions-trengthened nickelbase superalloy PM 3030
  21. On the improvement of the ductility of molybdenum by spinel (MgAl2O4) particles
  22. Hot workability and extrusion modelling of magnesium alloys
  23. Characterization of hot-deformation behaviour of Zircaloy-2: a comparison between kinetic analysis and processing maps
  24. Requirements for microstructural investigations of steels used in modern power plants
  25. Influence of Lüders band formation on the cyclic creep behaviour of a low-carbon steel for piping applications
  26. Creep and creep rupture behaviour of 650 °C ferritic/martensitic super heat resistant steels
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  28. Notifications/Mitteilungen
  29. Personal/Personelles
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  31. Conferences/Konferenzen
https://doi.org/10.3139/ijmr-2005-0113
Keywords for this article
Zircaloy-2; Kinetic analysis; Processing maps; Extrusion experiments; Hot deformation mechanisms

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Identifying creep mechanisms in plastic flow
  6. A unified microstructural metal plasticity model applied in testing, processing, and forming of aluminium alloys
  7. Implications of non-negligible microstructural variations during steady-state deformation
  8. Tertiary creep of metals and alloys
  9. Interactions between particles and low-angle dislocation boundaries during high-temperature deformation
  10. Strain-rate sensitivity of ultrafine-grained materials
  11. Transient plastic flow at nominally fixed structure due to load redistribution
  12. Vacancy concentrations determined from the diffuse background scattering of X-rays in plastically deformed copper
  13. Effect of heating rate in α + γ dual-phase field on lamellar microstructure and creep resistance of a TiAl alloy
  14. About stress reduction experiments during constant strain-rate deformation tests
  15. Finite-element modelling of anisotropic single-crystal superalloy creep deformation based on dislocation densities of individual slip systems
  16. Variational approach to subgrain formation
  17. Articles Applied
  18. Pseudoelastic cycling of ultra-fine-grained NiTi shape-memory wires
  19. Creep properties at 125 °C of an AM50 Mg alloy modified by Si additions
  20. Dependence of mechanical strength on grain structure in the γ′ and oxide dispersions-trengthened nickelbase superalloy PM 3030
  21. On the improvement of the ductility of molybdenum by spinel (MgAl2O4) particles
  22. Hot workability and extrusion modelling of magnesium alloys
  23. Characterization of hot-deformation behaviour of Zircaloy-2: a comparison between kinetic analysis and processing maps
  24. Requirements for microstructural investigations of steels used in modern power plants
  25. Influence of Lüders band formation on the cyclic creep behaviour of a low-carbon steel for piping applications
  26. Creep and creep rupture behaviour of 650 °C ferritic/martensitic super heat resistant steels
  27. Toughening mechanisms of a Ti-based nanostructured composite containing ductile dendrites
  28. Notifications/Mitteilungen
  29. Personal/Personelles
  30. News/Aktuelles
  31. Conferences/Konferenzen
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