Startseite Influence of hot working on mechanical and physical properties of an Fe – Ni – Co alloy
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Influence of hot working on mechanical and physical properties of an Fe – Ni – Co alloy

  • Seyed Mehdi Abbasi , Amir Momeni , Maryam Morakkabati und Rashid Mahdavi
Veröffentlicht/Copyright: 11. August 2014
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 105 Heft 8

Abstract

The flow behavior, mechanical and physical properties of alloy Fe-29 Ni-17 Co were studied using hot compression and hot rolling tests over the temperature range of 900 °C to1 200 °C and strain rates of 0.001 s−1 to 1 s−1. At temperatures below 1 100 °C, the flow curves were similar to those of dynamic recovery; whereas, at higher temperatures, faint peaks appeared on the flow curves. A modified power-law constitutive equation was used to model the dependences of flow stress on temperature and strain rate in different deformation regimes. The Kocks–Mecking equation was used to model the flow curves and to measure the mean flow stress of the material in hot rolling. The samples hot rolled at 1 100 – 1 200 °C to a reduction of 30 – 40 % showed the best combination of ductility and strength and low thermal expansion coefficient. Microstructures of the hot rolled samples indicated that hot rolling at 1 100 – 1 200 °C to reduction of 30 – 40 % leads to complete dynamic recrystallization.

Keywords: Low expansion alloys; Hot deformation; Recrystallization; Flow curve; Dilatometry
* Correspondence address, Dr. Amir Momeni, Hamedan University of Technology, Hamedan, Iran, Tel.: +98-811-8411556, E-mail: ;

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Received: 2013-10-10
Accepted: 2014-01-20
Published Online: 2014-08-11
Published in Print: 2014-08-11

© 2014, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure evolution at high temperature of chromium-rich iron-based alloys containing hafnium carbides
  5. Industrialised nanocrystalline bainitic steels. Design approach
  6. Impact toughness of welds deposited on H13 hot work tool steel
  7. Characterization of hot flow behaviour and deformation stability of medium carbon microalloyed steel using artificial neural networks and dynamic material model
  8. Influence of hot working on mechanical and physical properties of an Fe – Ni – Co alloy
  9. Thixo-joining of D2 and M2 tool steels: analysis of microstructure and mechanical properties
  10. Effect of Li addition on microstructure and mechanical properties of Al – Mg – Si alloy
  11. Investigation of the mechanochemical behavior of the Mg – TiO2 – H3BO3 system
  12. Tribological and micro/nano-structural characterization of some Fe-based sintered composites
  13. Synthesis and oxidation behavior of Al4SiC4 – Al – Si composites
  14. Copper-catalyzed electroless nickel coating on poly(ethylene terephthalate) board for electromagnetic application
  15. Effect of boron on wear and erosion of WC – Ni vacuum brazed coating
  16. Short Communications
  17. Crystalline boron carbide grown on a diamond surface
  18. People
  19. Prof. Dr. Dieter Herlach on the occasion of his 65th birthday
  20. DGM News
  21. DGM News
https://doi.org/10.3139/146.111078
Schlagwörter für diesen Artikel
Low expansion alloys; Hot deformation; Recrystallization; Flow curve; Dilatometry

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure evolution at high temperature of chromium-rich iron-based alloys containing hafnium carbides
  5. Industrialised nanocrystalline bainitic steels. Design approach
  6. Impact toughness of welds deposited on H13 hot work tool steel
  7. Characterization of hot flow behaviour and deformation stability of medium carbon microalloyed steel using artificial neural networks and dynamic material model
  8. Influence of hot working on mechanical and physical properties of an Fe – Ni – Co alloy
  9. Thixo-joining of D2 and M2 tool steels: analysis of microstructure and mechanical properties
  10. Effect of Li addition on microstructure and mechanical properties of Al – Mg – Si alloy
  11. Investigation of the mechanochemical behavior of the Mg – TiO2 – H3BO3 system
  12. Tribological and micro/nano-structural characterization of some Fe-based sintered composites
  13. Synthesis and oxidation behavior of Al4SiC4 – Al – Si composites
  14. Copper-catalyzed electroless nickel coating on poly(ethylene terephthalate) board for electromagnetic application
  15. Effect of boron on wear and erosion of WC – Ni vacuum brazed coating
  16. Short Communications
  17. Crystalline boron carbide grown on a diamond surface
  18. People
  19. Prof. Dr. Dieter Herlach on the occasion of his 65th birthday
  20. DGM News
  21. DGM News
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