Startseite Microstructures and mechanical properties of V–V3Si eutectic composites
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Microstructures and mechanical properties of V–V3Si eutectic composites

  • H. Bei , E. P. George EMAIL logo , E. A. Kenik und G. M. Pharr
Veröffentlicht/Copyright: 14. Februar 2022
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 95 Heft 6

Abstract

V–V3Si eutectic alloys were directionally solidified in a high temperature optical floating zone furnace. Depending on the solidification conditions, several microstructures were observed, such as well-aligned broken lamellar, fibrous, or cellular microstructures. The interphase spacings increased with decreasing solidification rates in agreement with the Jackson-Hunt theory. The mechanical properties of the individual phases were investigated by nanoindentation. It was found that the modulus and nanoindentation hardness of V3Si are 214 and 13.8 GPa, respectively, and those of the V solid-solution are 165 and 3.4 GPa, respectively. The high-temperature strength was examined by tensile testing at elevated temperatures. Preliminary results show that the ductile-to-brittle transition temperature is about 800 °C for this composite, and its strength is significantly higher than conventional V solid-solution alloys.

Keywords: Transition metal silicide; Directional solidification; Eutectics; Composites; Vanadium alloys; Intermetallics

Dedicated to Professor Dr. Peter Neumann on the occasion of his 65th birthday

Prof. Easo P. George Oak Ridge National Laboratory Metals and Ceramics Division 1 Bethel Valley Road Oak Ridge, TN 37831-6093 USA Tel.: +1 865 574 5085 Fax: +1 865 576 3881

  1. This research was sponsored by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U. S. Department of Energy, and the SHaRE Collaborative Research Center at Oak Ridge National Laboratory, under contract DE-AC05–00OR22725 with UT-Battelle, LLC.

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Received: 2004-01-05
Accepted: 2004-02-02
Published Online: 2022-02-14
Published in Print: 2022-02-14

© 2004 Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
  6. From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
  7. Geometry and surface state effects on the mechanical response of Au nanostructures
  8. Microstructural evolution and its effect on the mechanical properties of Cu–Ag microcomposites
  9. Deformation behaviour of strontium titanate between room temperature and 1800 K under ambient pressure
  10. The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
  11. Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
  12. Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
  13. Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
  14. Phases and phase equilibria in the Fe–Al–Zr system
  15. On the plate-like τ-phase formation in MnAl–C alloys
  16. Articles Applied
  17. The grain boundary hardness in austenitic stainless steels studied by nanoindentations
  18. The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
  19. Microstructures and mechanical properties of V–V3Si eutectic composites
  20. Grain boundary characterization and grain size measurement in an ultrafine-grained steel
  21. On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
  22. Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
  23. Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
  24. Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
  25. Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
  26. Tensile failure in a superplastic alumina
  27. Notifications/Mitteilungen
  28. Personal/Personelles
  29. Conferences/Konferenzen
https://doi.org/10.1515/ijmr-2004-0100
Schlagwörter für diesen Artikel
Transition metal silicide; Directional solidification; Eutectics; Composites; Vanadium alloys; Intermetallics

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
  6. From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
  7. Geometry and surface state effects on the mechanical response of Au nanostructures
  8. Microstructural evolution and its effect on the mechanical properties of Cu–Ag microcomposites
  9. Deformation behaviour of strontium titanate between room temperature and 1800 K under ambient pressure
  10. The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
  11. Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
  12. Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
  13. Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
  14. Phases and phase equilibria in the Fe–Al–Zr system
  15. On the plate-like τ-phase formation in MnAl–C alloys
  16. Articles Applied
  17. The grain boundary hardness in austenitic stainless steels studied by nanoindentations
  18. The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
  19. Microstructures and mechanical properties of V–V3Si eutectic composites
  20. Grain boundary characterization and grain size measurement in an ultrafine-grained steel
  21. On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
  22. Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
  23. Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
  24. Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
  25. Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
  26. Tensile failure in a superplastic alumina
  27. Notifications/Mitteilungen
  28. Personal/Personelles
  29. Conferences/Konferenzen
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