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. |
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Copyright © The Author(s), 2017. Published by Science Publishing Group |
Alloy, Mechanical Properties, Structure Properties
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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
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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Download@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}
}
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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