Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy

A. M. Ahmed Ali; A. G. Mostafa; A. N. Abdalazim; A. A. Ramadan; I. S. Ahmed Farag

doi:doi:10.11648/j.ep.20170102.13

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Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy

A. M. Ahmed Ali, A. G. Mostafa, A. N. Abdalazim, A. A. Ramadan, I. S. Ahmed Farag

Published in Engineering Physics (Volume 1, Issue 2)

Received: 7 June 2017 Accepted: 22 June 2017 Published: 27 July 2017

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Abstract

The modified eutectic silicon or refinement of primary silicon particles with uniform distribution are desired in real casting practice. In order to modify the microstructure of Al-Si alloys, many techniques are available. However the deliberate additions of several elements during melting are still the most easy and efficient way than other different techniques. Trace addition of Na or Sr is commonly used to modify the eutectic structure of Al-Si alloys from coarse plate-like structure in unmodified alloys to fine fibrous morphology in modified ones. Such a fine structure can potentially increase the ductility and tensile properties of these alloys. It was concluded that, 7% Si – 0.3% Mg alloys appeared to be a good refiner when treated by the additions of 0.2-0.4% AlTiB master alloy. In the same time, this alloy reaches good modification by the addition of 0.2-0.4 wt % of Al-10% Sr. The obtained results were compared with those obtained by using the traditional well known AlSr master alloy, AlTiB and a mixture of both AlTiB and AlSr.

Published in	Engineering Physics (Volume 1, Issue 2)
DOI	10.11648/j.ep.20170102.13
Page(s)	46-51
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Alloy, Mechanical Properties, Structure Properties

References

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[2]	Shu-Zu Iu, A. Hellawell, "Modification and Refinement of Al-Si alloys", Light metal, (1995) 989.
[3]	A. K. Dahle, K. Nogita, J. W. Zindel, S. D. McDonald & L. M. Hogan “Eutectic Nucleation and Growth in Hypoeutectic Al-Si Alloys at Different Strontium Levels”, Metallurgical and Materials Transactions, 32 A, (2001) 949.
[4]	D. Apelian, G. K. Sigworth and K. R. Whaler (1984) Trans. AFS, 92 297.
[5]	Mobasherpour, A. A. Tofigh and M. Ebrahimi, Matter. Chem.& Phys., 138 (2013) 535.
[6]	M. Filberbaum, A. K. Dahle,"Modification and Refinement of eutectics to improve performance of Al-Si castings ", Light metals (2011), 815.
[7]	Frank King, “Aluminium and its Alloys”, Elias Horeood Limited Pub. New York (1987).
[8]	Mc Carney D G, (1989) Int. Mater. Rev., 34 247.
[9]	G. M. Farrior, D. C. Brillhart and A. R. Burkart, Light Metal. Age, (1978) 11.
[10]	C. Limmaneevichitr and W. Eidhed, “Fading Mechanism of Grain Refinement of Aluminum-Silicon Alloys With AITiB Grain Refiner”, Material Science and Engineering”, 349 (2003) 197.
[11]	B. T. Dunville, D. K. Young and G. W. Boone, “A New Combination Grain Refiner/ Modifier for Hypoeutectic Al-Si Foundry Alloys”, Light Metals, (1994) 1065.

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A. M. Ahmed Ali, A. G. Mostafa, A. N. Abdalazim, A. A. Ramadan, I. S. Ahmed Farag. (2017). Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Engineering Physics, 1(2), 46-51. https://doi.org/10.11648/j.ep.20170102.13

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ACS Style

A. M. Ahmed Ali; A. G. Mostafa; A. N. Abdalazim; A. A. Ramadan; I. S. Ahmed Farag. Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Eng. Phys. 2017, 1(2), 46-51. doi: 10.11648/j.ep.20170102.13

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AMA Style

A. M. Ahmed Ali, A. G. Mostafa, A. N. Abdalazim, A. A. Ramadan, I. S. Ahmed Farag. Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Eng Phys. 2017;1(2):46-51. doi: 10.11648/j.ep.20170102.13

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@article{10.11648/j.ep.20170102.13,
  author = {A. M. Ahmed Ali and A. G. Mostafa and A. N. Abdalazim and A. A. Ramadan and I. S. Ahmed Farag},
  title = {Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy},
  journal = {Engineering Physics},
  volume = {1},
  number = {2},
  pages = {46-51},
  doi = {10.11648/j.ep.20170102.13},
  url = {https://doi.org/10.11648/j.ep.20170102.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ep.20170102.13},
  abstract = {The modified eutectic silicon or refinement of primary silicon particles with uniform distribution are desired in real casting practice. In order to modify the microstructure of Al-Si alloys, many techniques are available. However the deliberate additions of several elements during melting are still the most easy and efficient way than other different techniques. Trace addition of Na or Sr is commonly used to modify the eutectic structure of Al-Si alloys from coarse plate-like structure in unmodified alloys to fine fibrous morphology in modified ones. Such a fine structure can potentially increase the ductility and tensile properties of these alloys. It was concluded that, 7% Si – 0.3% Mg alloys appeared to be a good refiner when treated by the additions of 0.2-0.4% AlTiB master alloy. In the same time, this alloy reaches good modification by the addition of 0.2-0.4 wt % of Al-10% Sr. The obtained results were compared with those obtained by using the traditional well known AlSr master alloy, AlTiB and a mixture of both AlTiB and AlSr.},
 year = {2017}
}

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TY - JOUR
T1 - Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy
AU - A. M. Ahmed Ali
AU - A. G. Mostafa
AU - A. N. Abdalazim
AU - A. A. Ramadan
AU - I. S. Ahmed Farag
Y1 - 2017/07/27
PY - 2017
N1 - https://doi.org/10.11648/j.ep.20170102.13
DO - 10.11648/j.ep.20170102.13
T2 - Engineering Physics
JF - Engineering Physics
JO - Engineering Physics
SP - 46
EP - 51
PB - Science Publishing Group
SN - 2640-1029
UR - https://doi.org/10.11648/j.ep.20170102.13
AB - The modified eutectic silicon or refinement of primary silicon particles with uniform distribution are desired in real casting practice. In order to modify the microstructure of Al-Si alloys, many techniques are available. However the deliberate additions of several elements during melting are still the most easy and efficient way than other different techniques. Trace addition of Na or Sr is commonly used to modify the eutectic structure of Al-Si alloys from coarse plate-like structure in unmodified alloys to fine fibrous morphology in modified ones. Such a fine structure can potentially increase the ductility and tensile properties of these alloys. It was concluded that, 7% Si – 0.3% Mg alloys appeared to be a good refiner when treated by the additions of 0.2-0.4% AlTiB master alloy. In the same time, this alloy reaches good modification by the addition of 0.2-0.4 wt % of Al-10% Sr. The obtained results were compared with those obtained by using the traditional well known AlSr master alloy, AlTiB and a mixture of both AlTiB and AlSr.
VL - 1
IS - 2
ER -

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Author Information

A. M. Ahmed Ali

Physical Analysis Department, Egyptalum Laboratories, Aswan, Egypt
A. G. Mostafa

Physical Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
A. N. Abdalazim

Central of Metallurgical and Research Development Institute, El-Tebben, Cairo, Egypt
A. A. Ramadan

Physical Department, Faculty of Science, Helwan University, Cairo, Egypt
I. S. Ahmed Farag

Solid State Physical Department, National Research Center, Dokki, Cairo, Egypt

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APA Style

A. M. Ahmed Ali, A. G. Mostafa, A. N. Abdalazim, A. A. Ramadan, I. S. Ahmed Farag. (2017). Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Engineering Physics, 1(2), 46-51. https://doi.org/10.11648/j.ep.20170102.13

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ACS Style

A. M. Ahmed Ali; A. G. Mostafa; A. N. Abdalazim; A. A. Ramadan; I. S. Ahmed Farag. Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Eng. Phys. 2017, 1(2), 46-51. doi: 10.11648/j.ep.20170102.13

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AMA Style

A. M. Ahmed Ali, A. G. Mostafa, A. N. Abdalazim, A. A. Ramadan, I. S. Ahmed Farag. Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy. Eng Phys. 2017;1(2):46-51. doi: 10.11648/j.ep.20170102.13

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@article{10.11648/j.ep.20170102.13,
  author = {A. M. Ahmed Ali and A. G. Mostafa and A. N. Abdalazim and A. A. Ramadan and I. S. Ahmed Farag},
  title = {Effect of Some Additions on the Structure and Mechanical Properties of A356 - Al Si Alloy},
  journal = {Engineering Physics},
  volume = {1},
  number = {2},
  pages = {46-51},
  doi = {10.11648/j.ep.20170102.13},
  url = {https://doi.org/10.11648/j.ep.20170102.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ep.20170102.13},
  abstract = {The modified eutectic silicon or refinement of primary silicon particles with uniform distribution are desired in real casting practice. In order to modify the microstructure of Al-Si alloys, many techniques are available. However the deliberate additions of several elements during melting are still the most easy and efficient way than other different techniques. Trace addition of Na or Sr is commonly used to modify the eutectic structure of Al-Si alloys from coarse plate-like structure in unmodified alloys to fine fibrous morphology in modified ones. Such a fine structure can potentially increase the ductility and tensile properties of these alloys. It was concluded that, 7% Si – 0.3% Mg alloys appeared to be a good refiner when treated by the additions of 0.2-0.4% AlTiB master alloy. In the same time, this alloy reaches good modification by the addition of 0.2-0.4 wt % of Al-10% Sr. The obtained results were compared with those obtained by using the traditional well known AlSr master alloy, AlTiB and a mixture of both AlTiB and AlSr.},
 year = {2017}
}

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