Startseite Influence of stacking fault energy and alloying on stage V hardening of HPT-deformed materials
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Influence of stacking fault energy and alloying on stage V hardening of HPT-deformed materials

Dedicated to Professor Dr. H.-P. Degischer on the occasion of his 65th birthday
  • Martin Hafok und Reinhard Pippan
Veröffentlicht/Copyright: 18. Mai 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 101 Heft 9

Abstract

The grain refinement after high pressure torsion of pure metals and alloys exhibiting fcc crystal structure was examined. The aim was to characterise the influence of the stacking fault energy and the alloying on the grain size in the saturation regime. In this regime no further hardening of the material is observed and a constant mean grain size is obtained. Pure metals such as silver, copper and nickel and different brass alloys were severely deformed using high pressure torsion. During the severe deformation the torque curves were recorded for the different metals at different hydrostatic pressures. Due to the different deformation conditions, the influence of friction on the torque in the saturation regime can be estimated. In addition tensile tests were performed and the results were compared with flow stresses determined in the high pressure torsion experiments. A clear influence of the alloying on the flow stresses and the grain sizes of the materials was found, the stacking fault energy has a significant effect on the refinement, but only a minor effect on the saturation grain size.

Keywords: Severe plastic deformation; High pressure torsion; Stacking fault energy; Hardening; Grain refinement
∗ Correspondence address, Prof. Dr. Reinhard Pippan Erich Schmid Institute of Materials ScienceAustrian Academy of Sciences Jahnstr. 12, A-8700 Leoben, Austria Tel.: +43 3842 804 311 Fax: +43 3842 804 116 E-mail:

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Received: 2010-5-5
Accepted: 2010-6-29
Published Online: 2013-05-18
Published in Print: 2010-09-01

© 2010, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Hans-Peter Degischer – 65th birthday
  5. Basic
  6. X-ray and neutron imaging – Complementary techniques for materials science and engineering
  7. Fast in-situ X-ray micro tomography characterisation of microstructural evolution and strain-induced damage in alloys at various temperatures
  8. Thermo-kinetic computer simulation of differential scanning calorimetry curves of AlMgSi alloys
  9. Influence of stacking fault energy and alloying on stage V hardening of HPT-deformed materials
  10. Thermo-physical properties of silver/carbon fibre composites
  11. Influence of reinforcement contiguity on the thermal expansion of alumina particle reinforced aluminium composites
  12. A continuum based microstructure model of inhomogeneous hardening and recovery as a pre-stage of recrystallization nucleation
  13. Applied
  14. Metal foams – towards microcellular materials
  15. Gigacycle fatigue response of tool steels produced by powder metallurgy compared to ingot metallurgy tool steels
  16. Characterization of the microstructure and damage mechanisms in a Ti6Al4V alloy modified with 1 wt.% B
  17. Structural and age hardening characteristics of near eutectic Al–Si alloys
  18. Stress-corrosion cracking susceptibility of AZ31 alloy after varied heat-treatment in 3.5 wt.% NaCl solution
  19. Tensile deformation behavior of AA5083-H111 at cold and warm temperatures
  20. Experimental investigation of thermal fatigue behaviour of header tube to stub welded joint in power plants
  21. Synthesis and characterization of nanostructured Cu/ZnO/Al2O3 from lyotropic liquid crystalline templates
  22. DGM News
  23. Personal
https://doi.org/10.3139/146.110389
Schlagwörter für diesen Artikel
Severe plastic deformation; High pressure torsion; Stacking fault energy; Hardening; Grain refinement

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Hans-Peter Degischer – 65th birthday
  5. Basic
  6. X-ray and neutron imaging – Complementary techniques for materials science and engineering
  7. Fast in-situ X-ray micro tomography characterisation of microstructural evolution and strain-induced damage in alloys at various temperatures
  8. Thermo-kinetic computer simulation of differential scanning calorimetry curves of AlMgSi alloys
  9. Influence of stacking fault energy and alloying on stage V hardening of HPT-deformed materials
  10. Thermo-physical properties of silver/carbon fibre composites
  11. Influence of reinforcement contiguity on the thermal expansion of alumina particle reinforced aluminium composites
  12. A continuum based microstructure model of inhomogeneous hardening and recovery as a pre-stage of recrystallization nucleation
  13. Applied
  14. Metal foams – towards microcellular materials
  15. Gigacycle fatigue response of tool steels produced by powder metallurgy compared to ingot metallurgy tool steels
  16. Characterization of the microstructure and damage mechanisms in a Ti6Al4V alloy modified with 1 wt.% B
  17. Structural and age hardening characteristics of near eutectic Al–Si alloys
  18. Stress-corrosion cracking susceptibility of AZ31 alloy after varied heat-treatment in 3.5 wt.% NaCl solution
  19. Tensile deformation behavior of AA5083-H111 at cold and warm temperatures
  20. Experimental investigation of thermal fatigue behaviour of header tube to stub welded joint in power plants
  21. Synthesis and characterization of nanostructured Cu/ZnO/Al2O3 from lyotropic liquid crystalline templates
  22. DGM News
  23. Personal
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