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Effect of rapid quenching and severe plastic deformation on silver

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Veröffentlicht/Copyright: 11. Juni 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 103 Heft 9

Abstract

Pure silver has been rapidly quenched (RQ) in ribbon form by means of planar flow casting with different cooling rates, obtained with different velocities of the cooling wheel. Ingots of pure silver have been subjected to severe plastic deformation (SPD) using constrained groove pressing and equal-channel angular pressing. The grain size of RQ and SPD samples has been analysed using electron microscopy, showing that the higher the solidification rate and plastic deformation, the finer the microstructure. Preferred orientations and quenched-in defect concentration have been determined from X-ray diffraction analysis, showing a correlation between density of defects and cooling rate. Higher defect concentration was found in the samples processed via SPD. Vickers hardness numbers range from 135 for SPD, 70 for RQ and 45 for annealed samples. Differential scanning calorimetry analysis revealed multi-step coarsening of the microstructure at various temperatures for all samples.

Keywords: Silver; Rapid quenching; Severe plastic deformation
1 Correspondence address: Dr. Danilo Lussana, Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125 Torino (TO), Italy, Tel.: +39 0116707570, Fax: +39 0116707570, E-mail:

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Received: 2011-11-22
Accepted: 2012-2-27
Published Online: 2013-06-11
Published in Print: 2012-09-01

© 2012, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. RQ 14 – “Rapidly Quenched and Metastable Materials”
  5. Conference Proceedings
  6. Crystallization control in highly undercooled liquids and glasses
  7. Cooling conditions for the generation of bulk metallic glasses by droplet deposition
  8. Formation and microstructure of Ni62-xNb38Tix (x = 3, 6, 10 at.%) bulk metallic glasses
  9. Compositional features of bulk metallic glasses analyzed with a tetrahedral composition diagram from s-, p-, d- and f-blocks
  10. A partial structure factor investigation of the bulk metallic glass Zr63Ni25Al12 as studied by using a combination of anomalous X-ray scattering and reverse Monte Carlo modeling
  11. Mechanical behavior of the cold-rolled Zr57Ti8Nb2.5Cu13.9Ni11.1Al7.5 metallic glass–quasicrystalline composite
  12. Effect of rapid quenching and severe plastic deformation on silver
  13. Effect of Fe and V additions on amorphous structure formation in melt spun AlNiZr alloys
  14. Processing and characterization of mechanically alloyed immiscible metals
  15. Milling-induced polymorphic transformation in MoSi2
  16. Attainment of quasicrystalline phase in Al–Cu–Fe alloy via melting and mechanical alloying
  17. Characterization of amorphous Nb oxide and its influence on Mg hydrogen sorption
  18. Mechanochemistry and H-sorption properties of Mg2FeH6-based nanocomposites
  19. Rapidly solidified Fe-base alloys as electrode materials for water electrolysis
  20. Solidification of PTA aluminide coatings
  21. Superparamagnetic CoFe2O4 prepared via a modified oxalate method
  22. People
  23. Dr. Wolfgang Hoffelner
  24. Prof. Dr. Herbert Ipser
  25. DGM News
  26. DGM News
https://doi.org/10.3139/146.110771
Schlagwörter für diesen Artikel
Silver; Rapid quenching; Severe plastic deformation

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. RQ 14 – “Rapidly Quenched and Metastable Materials”
  5. Conference Proceedings
  6. Crystallization control in highly undercooled liquids and glasses
  7. Cooling conditions for the generation of bulk metallic glasses by droplet deposition
  8. Formation and microstructure of Ni62-xNb38Tix (x = 3, 6, 10 at.%) bulk metallic glasses
  9. Compositional features of bulk metallic glasses analyzed with a tetrahedral composition diagram from s-, p-, d- and f-blocks
  10. A partial structure factor investigation of the bulk metallic glass Zr63Ni25Al12 as studied by using a combination of anomalous X-ray scattering and reverse Monte Carlo modeling
  11. Mechanical behavior of the cold-rolled Zr57Ti8Nb2.5Cu13.9Ni11.1Al7.5 metallic glass–quasicrystalline composite
  12. Effect of rapid quenching and severe plastic deformation on silver
  13. Effect of Fe and V additions on amorphous structure formation in melt spun AlNiZr alloys
  14. Processing and characterization of mechanically alloyed immiscible metals
  15. Milling-induced polymorphic transformation in MoSi2
  16. Attainment of quasicrystalline phase in Al–Cu–Fe alloy via melting and mechanical alloying
  17. Characterization of amorphous Nb oxide and its influence on Mg hydrogen sorption
  18. Mechanochemistry and H-sorption properties of Mg2FeH6-based nanocomposites
  19. Rapidly solidified Fe-base alloys as electrode materials for water electrolysis
  20. Solidification of PTA aluminide coatings
  21. Superparamagnetic CoFe2O4 prepared via a modified oxalate method
  22. People
  23. Dr. Wolfgang Hoffelner
  24. Prof. Dr. Herbert Ipser
  25. DGM News
  26. DGM News
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