Startseite Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures
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Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures

  • Biljana Bobic , Miroslav Babic , Slobodan Mitrovic , Nenad Ilic , Ilija Bobic und Milan T. Jovanovic
Veröffentlicht/Copyright: 11. Juni 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 101 Heft 12

Abstract

Microstructures and compressive properties of Zn25Al3Cu alloy and Zn25Al3Cu/Al2O3 particulate composites with large reinforcing particles (250 μm) were examined. The composites were obtained by the compocasting technique through infiltration of 3, 8 and 16 wt.% Al2O3 particles into the semi-solid metal matrix. The influence of temperature in the range from 70 to 170°C on compressive yield strength of the matrix alloy (as-cast and thixocast Zn25Al3Cu alloy) and the composites was investigated. Above 70°C compressive yield strength of all materials decreases, but the rate of decrease is different for the matrix alloy (as-cast and thixocast) and composites. It was found that the abrupt decrease in compressive yield strength of the matrix alloy occurred at temperatures higher than 70°C, whereas composites retained relatively high values of compressive yield strength till the end of the testing temperature range regardless of the amount of reinforcing particles.

Keywords: Metal-matrix composites; Zinc–aluminum alloys; Al2O3 particles; Compocasting; Compressive yield strength
* Correspondence address, M. Sc. Biljana Bobic IHIS R & D Center Batajnicki drum 23, 11080 Belgrade, Serbia. Tel.: +381 11 316 8154 Fax: +381 11 19 4991 E-mail:

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Received: 2009-9-17
Accepted: 2009-9-10
Published Online: 2013-06-11
Published in Print: 2010-12-01

© 2010, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110425
Schlagwörter für diesen Artikel
Metal-matrix composites; Zinc–aluminum alloys; Al2O3 particles; Compocasting; Compressive yield strength

Artikel in diesem Heft

  1. Basic
  2. High-temperature in-situ microscopy during stress-induced phase transformations in Co49Ni21Ga30 shape memory alloy single crystals
  3. Contents
  4. contents
  5. Editorial
  6. Editorial December 2010
  7. Basic
  8. Atomic mobilities and diffusivities in the fcc, L12 and B2 phases of the Ni-Al system
  9. Experimental investigation of the Zn–Fe–V system at 450°C
  10. Time resolved X-ray imaging of eutectic cellular patterns evolving during solidification of ternary Al–Cu–Ag alloys
  11. Reassessment of the Mg–Ge binary system using CALPHAD supported by first-principles calculation
  12. A quantitative modeling of the unloading behavior of metals during a tensile test
  13. A technique for diameter enlargement in SiC crystal growth
  14. Applied
  15. Thermal and chemical stability of Cr2AlC in contact with α-Al2O3 and NiAl
  16. Microstructure and mechanical properties of Zn25Al3Cu based composites with large Al2O3 particles at room and elevated temperatures
  17. An investigation on Incoloy800-SS304 clad plate by explosive welding
  18. Effect of grain boundary precipitates on vibration damping of FeüCrüMgüAl/Si alloy
  19. Adsorption of metal ions on magnetic carbon nanomaterials bearing chitosan-functionalized silica
  20. Tensile and in-vitro degradation study of electro spun fibrous mat produced from eri silk fibroin
  21. Study of the influence of UV-irradiation on the photodegradation of plasticized poly(para-tert-butylstyrene) films
  22. Enhanced photocatalytic activity of beryllium doped titania in visible light on the degradation of methyl orange dye
  23. Progress in chemistry modelling for vapour and aerosol transport analyses
  24. DGM News
  25. Personal
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