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Microstructural evolution during solidification of Al–Cu-based alloys

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Published/Copyright: November 10, 2015
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 106 Issue 11

Abstract

The present study focuses on the effect of alloying elements, namely, strontium, titanium, zirconium, scandium and silver, individually or in combination, on the performance of a newly developed Al-2 %Cu-based alloy. A total of thirteen alloy compositions were used in the study. Castings were prepared employing the low pressure die casting technique. The microstructures of selected samples were examined using optical microscopy and electron probe microanalysis. Hardness measurements were also carried out on these alloys using a Brinell hardness tester. The results showed that adding Ti in the amount of 0.15 wt.% in the form of Al-5 %Ti-1 %B master alloy is sufficient to refine the grains in the cast structure in the presence of 200 ppm Sr (0.02 wt.%). Addition of Zr and Sc did not contribute further to the grain refining effect. The main role of addition of these two elements appeared in the formation of complex compounds with Al and Ti. The results obtained from the low pressure die casting samples were compared with those produced using traditional gravity die casting. No heat treatment was applied.

Keywords: Low pressure die casting; Gravity die casting; Macrostructure; Microstructure; Aluminum alloys
*Correspondence address, Prof. F.H. Samuel, Département des Sciences Appliquées, Université du Québec à Chicoutimi, 555, Boulevard de l”Université, Chicoutimi (QC), Canada G7H 2B1. Tel.: +1-418-545-5406, Fax: +1-418-545-5012, E-mail:

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Received: 2015-02-19
Accepted: 2015-06-05
Published Online: 2015-11-10
Published in Print: 2015-11-10

© 2015, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Orientation-dependent plasma etch rates of single crystal silicon for dry etcher parts
  5. How to produce a desired bimodal microstructure for optimized mechanical properties: Investigation of the mechanisms of abnormal grain growth in pulsed electro-deposited nickel
  6. Microstructural evolution during solidification of Al–Cu-based alloys
  7. Effects of Sn and Ca on the microstructure and mechanical properties of Mg–Zn–Y–Nd–Zr alloys
  8. Wear properties of hybrid AlSi12 matrix syntactic foams
  9. Mechanical and tribological properties of functionally graded aluminium/zirconia metal matrix composite synthesized by centrifugal casting
  10. Estimation of distinctive mechanical properties of spark plasma sintered titanium–titanium boride composites through nano-indentation technique
  11. A comparative study of nanostructured calcium copper titanate thin film and powder and their properties
  12. Preparation of potato starch-based carbon particles by low-temperature carbonization in oil
  13. Short Communications
  14. Preparation of (100) oriented Sc-doped AlN film on flexible substrate under different pressures using RF reactive sputtering
  15. Novel borothermal synthesis of VB2 powders
  16. People
  17. Prof. Dr. Peter J. Uggowitzer on the occasion of his 65th birthday
  18. DGM News
  19. DGM News
https://doi.org/10.3139/146.111288
Keywords for this article
Low pressure die casting; Gravity die casting; Macrostructure; Microstructure; Aluminum alloys

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Orientation-dependent plasma etch rates of single crystal silicon for dry etcher parts
  5. How to produce a desired bimodal microstructure for optimized mechanical properties: Investigation of the mechanisms of abnormal grain growth in pulsed electro-deposited nickel
  6. Microstructural evolution during solidification of Al–Cu-based alloys
  7. Effects of Sn and Ca on the microstructure and mechanical properties of Mg–Zn–Y–Nd–Zr alloys
  8. Wear properties of hybrid AlSi12 matrix syntactic foams
  9. Mechanical and tribological properties of functionally graded aluminium/zirconia metal matrix composite synthesized by centrifugal casting
  10. Estimation of distinctive mechanical properties of spark plasma sintered titanium–titanium boride composites through nano-indentation technique
  11. A comparative study of nanostructured calcium copper titanate thin film and powder and their properties
  12. Preparation of potato starch-based carbon particles by low-temperature carbonization in oil
  13. Short Communications
  14. Preparation of (100) oriented Sc-doped AlN film on flexible substrate under different pressures using RF reactive sputtering
  15. Novel borothermal synthesis of VB2 powders
  16. People
  17. Prof. Dr. Peter J. Uggowitzer on the occasion of his 65th birthday
  18. DGM News
  19. DGM News
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