Data showing the effects of disc milling time on the composition and morphological transformation of (aþb) titanium alloy (Tie6Ale2Sne2Moe2Cre2Zr-0.25Si) grade
- Ogbonna, Okwudili Simeon, Akinlabi, Stephen A., Madushele, Nkosinathi
- Authors: Ogbonna, Okwudili Simeon , Akinlabi, Stephen A. , Madushele, Nkosinathi
- Date: 2019
- Subjects: Titanium alloy , Milling time , SEM
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/402429 , uj:33676 , Citation: Ogbonna, O.S., Akinlabi, S.A. & Madushele, N. 2019. Data showing the effects of disc milling time on the composition and morphological transformation of (aþb) titanium alloy (Tie6Ale2Sne2Moe2Cre2Zr-0.25Si) grade. , DOI: https://doi.org/10.1016/j.dib.2019.104174
- Description: Abstract: In powder metallurgy, dry mechanical milling process is an effective technique employed in the reduction of solid materials into the desired size in the fabrication of materials or components from metal powders for various applications. However, the milling operation introduces changes in the size and shape as well as the elemental or chemical composition of the milled substance. These changes introduced after milling requires critical analyses as the performance and efficiency of fabricated components depend so much on the size, shape and chemical composition of the powders. In this data, the effects of vibratory disc milling on the morphological transformation and elemental composition of titanium alloy powder were observed and analyzed by Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). The as received titanium alloy powder was subjected to dry mechanical milling machine rated 380V/50Hz at 940 rpm. Milling time of 2, 4, 6, 8 and 10 mins were adopted in this data collection. SEM and EDS analyses revealed that milling transformed the spherical shaped powders into plate-like shapes. This deformation in the shape of the powder increased with increase in milling time. Also,..
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- Authors: Ogbonna, Okwudili Simeon , Akinlabi, Stephen A. , Madushele, Nkosinathi
- Date: 2019
- Subjects: Titanium alloy , Milling time , SEM
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/402429 , uj:33676 , Citation: Ogbonna, O.S., Akinlabi, S.A. & Madushele, N. 2019. Data showing the effects of disc milling time on the composition and morphological transformation of (aþb) titanium alloy (Tie6Ale2Sne2Moe2Cre2Zr-0.25Si) grade. , DOI: https://doi.org/10.1016/j.dib.2019.104174
- Description: Abstract: In powder metallurgy, dry mechanical milling process is an effective technique employed in the reduction of solid materials into the desired size in the fabrication of materials or components from metal powders for various applications. However, the milling operation introduces changes in the size and shape as well as the elemental or chemical composition of the milled substance. These changes introduced after milling requires critical analyses as the performance and efficiency of fabricated components depend so much on the size, shape and chemical composition of the powders. In this data, the effects of vibratory disc milling on the morphological transformation and elemental composition of titanium alloy powder were observed and analyzed by Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). The as received titanium alloy powder was subjected to dry mechanical milling machine rated 380V/50Hz at 940 rpm. Milling time of 2, 4, 6, 8 and 10 mins were adopted in this data collection. SEM and EDS analyses revealed that milling transformed the spherical shaped powders into plate-like shapes. This deformation in the shape of the powder increased with increase in milling time. Also,..
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Experimental Investigation of mechanical properties of reinforced composite using titanium alloy powder
- Authors: Ogbonna, Okwudili Simeon
- Date: 2018
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393821 , uj:32599
- Description: Abstract : Composite materials constitute a combination of two or more dissimilar materials. They often have different properties which work together to give unique properties different from the parent materials. The discontinuous, stiffer and stronger constituents are the reinforcements, whereas the less stiff, weaker and continuous is referred to as the matrix. The properties of a composite material depend on the weight percentage, geometry, distribution, and properties of the constituent phases, which often result in property combinations that are better when compared to the properties found in the metallic alloys, ceramics, and polymeric materials. Polymer composites constitute an important class of composite material due to their improved mechanical properties, easy fabrication and low cost. In this research work, epoxy resin, a thermosetting resin was reinforced with pure titanium powder and titanium alloy powder. The fabricated composites were characterized through Vickers microhardness test, impact test, flexural test, scanning electron microscopy, energy dispersive spectroscopy and x-ray diffraction spectroscopy. The microhardness of the composites reinforced with functionalized titanium powder decreased with an increase in the weight percentage of the particles while the reverse was the case for the composites fabricated without particle functionalization. However, pure titanium powder gave better improvement for the composites reinforced with functionalized particles. The trend was reversed when the particles were functionalized. The introduction of the titanium powder as reinforcement improved the impact energy of the composites. The flexural properties of the composites were significantly improved by the reinforcement. In all, a maximum of approximately 184 % remarkable improvement was recorded in the flexural modulus compared to the composites without reinforcement. The SEM revealed that the introduction of the titanium powder increased the roughness of the surface of ... , M.Ing. (Mechanical Engineering)
- Full Text:
- Authors: Ogbonna, Okwudili Simeon
- Date: 2018
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/393821 , uj:32599
- Description: Abstract : Composite materials constitute a combination of two or more dissimilar materials. They often have different properties which work together to give unique properties different from the parent materials. The discontinuous, stiffer and stronger constituents are the reinforcements, whereas the less stiff, weaker and continuous is referred to as the matrix. The properties of a composite material depend on the weight percentage, geometry, distribution, and properties of the constituent phases, which often result in property combinations that are better when compared to the properties found in the metallic alloys, ceramics, and polymeric materials. Polymer composites constitute an important class of composite material due to their improved mechanical properties, easy fabrication and low cost. In this research work, epoxy resin, a thermosetting resin was reinforced with pure titanium powder and titanium alloy powder. The fabricated composites were characterized through Vickers microhardness test, impact test, flexural test, scanning electron microscopy, energy dispersive spectroscopy and x-ray diffraction spectroscopy. The microhardness of the composites reinforced with functionalized titanium powder decreased with an increase in the weight percentage of the particles while the reverse was the case for the composites fabricated without particle functionalization. However, pure titanium powder gave better improvement for the composites reinforced with functionalized particles. The trend was reversed when the particles were functionalized. The introduction of the titanium powder as reinforcement improved the impact energy of the composites. The flexural properties of the composites were significantly improved by the reinforcement. In all, a maximum of approximately 184 % remarkable improvement was recorded in the flexural modulus compared to the composites without reinforcement. The SEM revealed that the introduction of the titanium powder increased the roughness of the surface of ... , M.Ing. (Mechanical Engineering)
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