Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy

Okwonna Chukwuebuka Onochie

doi:doi:10.11648/j.ijmea.20210904.12

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Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy

Okwonna Chukwuebuka Onochie

Published in International Journal of Mechanical Engineering and Applications (Volume 9, Issue 4)

Received: 1 April 2021 Accepted: 20 May 2021 Published: 23 September 2021

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Abstract

This experimental research portrays the impact of strontium seen on hardness and impact strength of Al-1.0%mn-12%Si alloy. Strontium was added with respect to the amount of silicon present in the alloys (12% of Si; 0.02-0.03% of Sr) and 1.0% manganese which serves as a modifying agent). Higher amount of aluminum and silicon were dissolved and cast as cylindrical ingots. Impact and Hardness test were tested using charpy impact testing machine and Rockwell hardness testing machine (ASTM E18-11) respectively. The addition of Sr appears to decline as soon as the addition exceeds the 0.026% level which shows negative effect to the mechanical properties because of the presence of some compounds like Al4SrSi2 and releases of brittle Al3SrSi3 phase are bound to set and coarsening of the eutectic silicon can occur which will reduce the properties of the alloy causing them to revert to values more typical of unmodified material. The results showed that when strontium was used as a modifier to modify eutectic Al-Si alloy modifies the Al-Si, that the morphology of the alloy changed that lead to positive enhancement/increment in mechanical properties of the alloy.

Published in	International Journal of Mechanical Engineering and Applications (Volume 9, Issue 4)
DOI	10.11648/j.ijmea.20210904.12
Page(s)	72-74
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), 2021. Published by Science Publishing Group

Keywords

Strontium, Aluminum Alloy, Eutectic Alloy, Impact Strength, Hardness

References

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[2]	Daintith, J. [ed.] (2000):“Oxford Dictionary of Chemistry, Fourth Edition”. New York: Oxford University Press, Inc.
[3]	Mbuya, T. O, (2003) ‘Influence of iron on castability and properties of aluminium silicon alloys; literature review’ international journal of cast metals research, 16 (5), pp, 451-465.
[4]	Chawla, K. K, Liaw, P. K and Fishman, S. G, (1996)."High-Performance Composites: Commonalty of Phenomena" (Conference Review), JOM, 48 (2), pp. 43-44.
[5]	Liao H, Sun Y, Sun G (2002), Correlation between mechanical properties and amount of dendritic α-Al phase in as-cast near-eutectic Al-11.6% Si alloys modified with strontium. Journal of Materials Processing Technology A335.
[6]	Okwonna, C. O (2013). The Influence of additives on Al-Si eutectic alloy. M. Sc project, University of portharcourt, Nigeria.
[7]	Szymczak, Cz. k, Kujawa, M. (2017). Local bucling of thin-walled channel member flange made of aluminum alloy. AIP Conference Proceedings 1822, 020014; doi: 10.1063/1.4977688.
[8]	Zheng. Y. O, Zhang, Z. (2016). The performance and fire resistance of aluminium alloy I-beam, fire and Materials.
[9]	Summers, P. Y. T., Chen, Y., Rippe, ch. M., Allen, B., Mouritz, A. P., Case, S. W., Latimer, B. Y (2015). Overview of aluminium alloy mechanical properities.
[10]	ASTM E 18-08b- Standard Test Methods for Rockwell Hardness of Metallic Materials
[11]	Andrzej Ambroziak (2018). Application and mechanical properties of aluminium alloys. Gdansk University of Technology, faculty of civil and environmental engineering Poland. Pp 525-528.
[12]	Alaco metals (2019) Aalco Metals Ltd, Parkway House, Unit 6 Parkway Industrial Estate, Wednesbury WS10 7WP
[13]	Rosmanamuhanandi R, Sulaimans, Azmah M. I. S, Talari M. K (2018). Characterization of Al-Si cast alloy refined with titanium diboride and scandium (Sc). Journal of mechanical engineering 5 (1), 62-70.
[14]	Ibrahim R. E, Sabrina M, smamuhamadni R, Yahaya m, Suliaimann S, Ismali M. I. S (2018). Corrosion behavior of Al-Si cast alloy reinforced with titaniumdiboride (TiB2) and scandium. Journal of engineering and science research (2) 1-8.
[15]	Basir N. N. A, Mustafa N. H, Ibrahim R. E, Rosmamuhamadani R (2019). Mecahnical Characterization of Al-Si-TiB2 reinforced by scandium (Sc) and Strontium (Sr). International Journal of engineering and technology. 7 (4.14): 392.

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Okwonna Chukwuebuka Onochie. (2021). Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. International Journal of Mechanical Engineering and Applications, 9(4), 72-74. https://doi.org/10.11648/j.ijmea.20210904.12

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ACS Style

Okwonna Chukwuebuka Onochie. Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. Int. J. Mech. Eng. Appl. 2021, 9(4), 72-74. doi: 10.11648/j.ijmea.20210904.12

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AMA Style

Okwonna Chukwuebuka Onochie. Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. Int J Mech Eng Appl. 2021;9(4):72-74. doi: 10.11648/j.ijmea.20210904.12

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@article{10.11648/j.ijmea.20210904.12,
  author = {Okwonna Chukwuebuka Onochie},
  title = {Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {9},
  number = {4},
  pages = {72-74},
  doi = {10.11648/j.ijmea.20210904.12},
  url = {https://doi.org/10.11648/j.ijmea.20210904.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20210904.12},
  abstract = {This experimental research portrays the impact of strontium seen on hardness and impact strength of Al-1.0%mn-12%Si alloy. Strontium was added with respect to the amount of silicon present in the alloys (12% of Si; 0.02-0.03% of Sr) and 1.0% manganese which serves as a modifying agent). Higher amount of aluminum and silicon were dissolved and cast as cylindrical ingots. Impact and Hardness test were tested using charpy impact testing machine and Rockwell hardness testing machine (ASTM E18-11) respectively. The addition of Sr appears to decline as soon as the addition exceeds the 0.026% level which shows negative effect to the mechanical properties because of the presence of some compounds like Al4SrSi2 and releases of brittle Al3SrSi3 phase are bound to set and coarsening of the eutectic silicon can occur which will reduce the properties of the alloy causing them to revert to values more typical of unmodified material. The results showed that when strontium was used as a modifier to modify eutectic Al-Si alloy modifies the Al-Si, that the morphology of the alloy changed that lead to positive enhancement/increment in mechanical properties of the alloy.},
 year = {2021}
}

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TY  - JOUR
T1  - Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy
AU  - Okwonna Chukwuebuka Onochie
Y1  - 2021/09/23
PY  - 2021
N1  - https://doi.org/10.11648/j.ijmea.20210904.12
DO  - 10.11648/j.ijmea.20210904.12
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 72
EP  - 74
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20210904.12
AB  - This experimental research portrays the impact of strontium seen on hardness and impact strength of Al-1.0%mn-12%Si alloy. Strontium was added with respect to the amount of silicon present in the alloys (12% of Si; 0.02-0.03% of Sr) and 1.0% manganese which serves as a modifying agent). Higher amount of aluminum and silicon were dissolved and cast as cylindrical ingots. Impact and Hardness test were tested using charpy impact testing machine and Rockwell hardness testing machine (ASTM E18-11) respectively. The addition of Sr appears to decline as soon as the addition exceeds the 0.026% level which shows negative effect to the mechanical properties because of the presence of some compounds like Al4SrSi2 and releases of brittle Al3SrSi3 phase are bound to set and coarsening of the eutectic silicon can occur which will reduce the properties of the alloy causing them to revert to values more typical of unmodified material. The results showed that when strontium was used as a modifier to modify eutectic Al-Si alloy modifies the Al-Si, that the morphology of the alloy changed that lead to positive enhancement/increment in mechanical properties of the alloy.
VL  - 9
IS  - 4
ER  -

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Author Information

Okwonna Chukwuebuka Onochie

Department of Mechanical Engineering, Micheal Okpara University of Agriculture, Umudike, Nigeria

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APA Style

Okwonna Chukwuebuka Onochie. (2021). Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. International Journal of Mechanical Engineering and Applications, 9(4), 72-74. https://doi.org/10.11648/j.ijmea.20210904.12

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ACS Style

Okwonna Chukwuebuka Onochie. Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. Int. J. Mech. Eng. Appl. 2021, 9(4), 72-74. doi: 10.11648/j.ijmea.20210904.12

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AMA Style

Okwonna Chukwuebuka Onochie. Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy. Int J Mech Eng Appl. 2021;9(4):72-74. doi: 10.11648/j.ijmea.20210904.12

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@article{10.11648/j.ijmea.20210904.12,
  author = {Okwonna Chukwuebuka Onochie},
  title = {Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {9},
  number = {4},
  pages = {72-74},
  doi = {10.11648/j.ijmea.20210904.12},
  url = {https://doi.org/10.11648/j.ijmea.20210904.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20210904.12},
  abstract = {This experimental research portrays the impact of strontium seen on hardness and impact strength of Al-1.0%mn-12%Si alloy. Strontium was added with respect to the amount of silicon present in the alloys (12% of Si; 0.02-0.03% of Sr) and 1.0% manganese which serves as a modifying agent). Higher amount of aluminum and silicon were dissolved and cast as cylindrical ingots. Impact and Hardness test were tested using charpy impact testing machine and Rockwell hardness testing machine (ASTM E18-11) respectively. The addition of Sr appears to decline as soon as the addition exceeds the 0.026% level which shows negative effect to the mechanical properties because of the presence of some compounds like Al4SrSi2 and releases of brittle Al3SrSi3 phase are bound to set and coarsening of the eutectic silicon can occur which will reduce the properties of the alloy causing them to revert to values more typical of unmodified material. The results showed that when strontium was used as a modifier to modify eutectic Al-Si alloy modifies the Al-Si, that the morphology of the alloy changed that lead to positive enhancement/increment in mechanical properties of the alloy.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Impact of Strontium on the Hardness and Impact Test of Eutectic Al-Si+1.0% Manganese Alloy
AU  - Okwonna Chukwuebuka Onochie
Y1  - 2021/09/23
PY  - 2021
N1  - https://doi.org/10.11648/j.ijmea.20210904.12
DO  - 10.11648/j.ijmea.20210904.12
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 72
EP  - 74
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20210904.12
AB  - This experimental research portrays the impact of strontium seen on hardness and impact strength of Al-1.0%mn-12%Si alloy. Strontium was added with respect to the amount of silicon present in the alloys (12% of Si; 0.02-0.03% of Sr) and 1.0% manganese which serves as a modifying agent). Higher amount of aluminum and silicon were dissolved and cast as cylindrical ingots. Impact and Hardness test were tested using charpy impact testing machine and Rockwell hardness testing machine (ASTM E18-11) respectively. The addition of Sr appears to decline as soon as the addition exceeds the 0.026% level which shows negative effect to the mechanical properties because of the presence of some compounds like Al4SrSi2 and releases of brittle Al3SrSi3 phase are bound to set and coarsening of the eutectic silicon can occur which will reduce the properties of the alloy causing them to revert to values more typical of unmodified material. The results showed that when strontium was used as a modifier to modify eutectic Al-Si alloy modifies the Al-Si, that the morphology of the alloy changed that lead to positive enhancement/increment in mechanical properties of the alloy.
VL  - 9
IS  - 4
ER  -

Copy | Download