Fractals in nature are so complicated and irregular that it is hopeless to model them by simply using classical geometry object. These fractal-like properties are found in many natural and artificial objects and processes. A new approach to describe them appropriately is the uses of fractal geometry. This geometry is successfully used in science and engineering to provide insight regarding an underlying characteristic of nature that contributes to human functioning. In this study, fractal analysis of micro-porosity distribution in titanium alloy compacted at 50, 100 and 200 MPa, sintered at 1273, 1373 and 1473 K respectively were investigated. The micro-porosities resulting from each micrograph was analyzed using weighted average and a measure of dispersion (Variance), which is done by measuring the dispersion of the shapes of the pores from that of a perfect sphere (β=1). Large-shaped macro-pores with varying degree of irregularities were observed in as-cast samples. Increased compaction pressure with sintering temperature leads to more reduction in pores. Hypothetically, the best pore shapes were found in sample compacted at 50 MPa and sintered at 1473 K. A weighted average sphericity and fractal dimension 0.7740 and 1.1889 were obtained showing that the pores are more regular in nature.
| Published in | Science Frontiers (Volume 2, Issue 2) |
| DOI | 10.11648/j.sf.20210202.12 |
| Page(s) | 28-32 |
| 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 |
Micro-porosity, Sphericity, Fractal Dimension, Compaction Pressure, Sintering Temperature
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APA Style
Adetola Sunday Olufemi, Mudashiru Lateef Owowlabi, Babatunde Issa Akinola, Kolapo Olawale Ibrahim. (2021). A Measurement of Micro-Porosity Formations in Titanium Alloy Fabricated Through Powder Metallurgy. Science Frontiers, 2(2), 28-32. https://doi.org/10.11648/j.sf.20210202.12
ACS Style
Adetola Sunday Olufemi; Mudashiru Lateef Owowlabi; Babatunde Issa Akinola; Kolapo Olawale Ibrahim. A Measurement of Micro-Porosity Formations in Titanium Alloy Fabricated Through Powder Metallurgy. Sci. Front. 2021, 2(2), 28-32. doi: 10.11648/j.sf.20210202.12
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author = {Adetola Sunday Olufemi and Mudashiru Lateef Owowlabi and Babatunde Issa Akinola and Kolapo Olawale Ibrahim},
title = {A Measurement of Micro-Porosity Formations in Titanium Alloy Fabricated Through Powder Metallurgy},
journal = {Science Frontiers},
volume = {2},
number = {2},
pages = {28-32},
doi = {10.11648/j.sf.20210202.12},
url = {https://doi.org/10.11648/j.sf.20210202.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sf.20210202.12},
abstract = {Fractals in nature are so complicated and irregular that it is hopeless to model them by simply using classical geometry object. These fractal-like properties are found in many natural and artificial objects and processes. A new approach to describe them appropriately is the uses of fractal geometry. This geometry is successfully used in science and engineering to provide insight regarding an underlying characteristic of nature that contributes to human functioning. In this study, fractal analysis of micro-porosity distribution in titanium alloy compacted at 50, 100 and 200 MPa, sintered at 1273, 1373 and 1473 K respectively were investigated. The micro-porosities resulting from each micrograph was analyzed using weighted average and a measure of dispersion (Variance), which is done by measuring the dispersion of the shapes of the pores from that of a perfect sphere (β=1). Large-shaped macro-pores with varying degree of irregularities were observed in as-cast samples. Increased compaction pressure with sintering temperature leads to more reduction in pores. Hypothetically, the best pore shapes were found in sample compacted at 50 MPa and sintered at 1473 K. A weighted average sphericity and fractal dimension 0.7740 and 1.1889 were obtained showing that the pores are more regular in nature.},
year = {2021}
}
TY - JOUR T1 - A Measurement of Micro-Porosity Formations in Titanium Alloy Fabricated Through Powder Metallurgy AU - Adetola Sunday Olufemi AU - Mudashiru Lateef Owowlabi AU - Babatunde Issa Akinola AU - Kolapo Olawale Ibrahim Y1 - 2021/08/18 PY - 2021 N1 - https://doi.org/10.11648/j.sf.20210202.12 DO - 10.11648/j.sf.20210202.12 T2 - Science Frontiers JF - Science Frontiers JO - Science Frontiers SP - 28 EP - 32 PB - Science Publishing Group SN - 2994-7030 UR - https://doi.org/10.11648/j.sf.20210202.12 AB - Fractals in nature are so complicated and irregular that it is hopeless to model them by simply using classical geometry object. These fractal-like properties are found in many natural and artificial objects and processes. A new approach to describe them appropriately is the uses of fractal geometry. This geometry is successfully used in science and engineering to provide insight regarding an underlying characteristic of nature that contributes to human functioning. In this study, fractal analysis of micro-porosity distribution in titanium alloy compacted at 50, 100 and 200 MPa, sintered at 1273, 1373 and 1473 K respectively were investigated. The micro-porosities resulting from each micrograph was analyzed using weighted average and a measure of dispersion (Variance), which is done by measuring the dispersion of the shapes of the pores from that of a perfect sphere (β=1). Large-shaped macro-pores with varying degree of irregularities were observed in as-cast samples. Increased compaction pressure with sintering temperature leads to more reduction in pores. Hypothetically, the best pore shapes were found in sample compacted at 50 MPa and sintered at 1473 K. A weighted average sphericity and fractal dimension 0.7740 and 1.1889 were obtained showing that the pores are more regular in nature. VL - 2 IS - 2 ER -
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