Effect of In-Situ TiB2 Particle Addition on the Mechanical Properties of AA 2219 Al Alloy Composite (original) (raw)
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Investigation of Mechanical Properties of Al Alloy Composites through in Situ TiB2 Reinforced
IRJET, 2022
The paper explores the arrangement of in situ TiB2 through a substance response among Al, TiO2, and B2O3. The thermodynamic evaluation shows the arrangement of TiB2 through two phases, in particular, a decrease of Ti and B from their oxides followed by the development of TiB2. 53% and 44% expansions in the yield and extreme elastic burdens of the composite supported with 15%TiB2 contrasted with its unreinforced partner have been noticed.
Materials Science and Engineering: A, 2014
Different milling conditions have been tried to produce nanoparticles of TiB 2 to be used as reinforcement in Al matrix composite materials. The milling of TiB 2 compounds leads to a decrease of both the crystallite size and the particle size. Moreover, we demonstrate that the use of optimized conditions with a vibratory miller allowsin a short period of timethe direct synthesis of nanoparticles of TiB 2 starting from the elemental powders (Ti and B). Then TiB 2 reinforced Al composite was fabricated using a simple powder metallurgy process followed by free sintering under controlled atmosphere. The influence of (i) the nanometric TiB 2 particles grain size and (ii) their volume fraction on the hardness and Young's modulus, measured from nanoindentation tests, has been analyzed. & 2013 Elsevier B.V. All rights reserved. introduce TiB 2 in the aluminum matrix. On the other hand, Gotman and Koczak [11] employed self-propagating hightemperature synthesis. Tee et al. [6] used a mixture of elemental Ti and B powders in molten Al to produce in situ Al-TiB 2 composite through the traditional stir-casting technique. Contents lists available at ScienceDirect
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INFLUENCE OF THE TITANIUM DIBORIDE ON THE PROPERTIES OF Al/TiB2 IN SITU COMPOSITES
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Make use of TiB 2 salts with Al-2011 fabricated by stir cast method. In the composites of Particulate reinforced varies in non-uniform microstructure and the composition in a 5 and 10 percentage of TiB 2 in functional performance of a component with continuously changing properties. In mechanical, aeronautical and marine field Al 2011 is used due to its good mechanical and corrosion resistance. TiB 2 is combined with Al 2011 also increases the mechanical corrosion resistance properties. MMc of Al-2011 by stir cast method titanium and boride salt were used. InTiB 2 5% and 10% the tension tests and hardness tests were performed on the as cast or after heat treated samples to find the microstructure and the effect of reinforcement on the mechanical properties.
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Al-Si alloy-based composite is one of the most promising MMC materials owing to its outstanding mechanical properties, wear and corrosion resistance, low cost and ability to be synthesized via conventional casting routes. Challenges in achieving clean interface between reinforced particles and matrix alloy have been overcome by means of in-situ techniques of fabrication. Present investigation is concerned with synthesizing Al-Si-TiB 2 in-situ composites through stir casting route using K 2 TiF 6 and KBF 4 halide salts for exothermic salt metal reaction. X-Ray diffraction analysis revealed the existence of TiB 2 in the prepared samples. Effect of TiB 2 in-situ particles in the Al-Si base alloy has been investigated from the results obtained from optical microscopy as well as SEM study and wear analysis with a pin on disc wear testing apparatus. Improved hardness and wear properties were observed with addition of TiB 2 .
Mechanical and Tribological Characterizations of Al/TiB2 composites
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The aluminium matrix composites are classified as lightweight aluminium centric metal matrix composites. It has dual properties of metal and ceramic materials. Now a days, monolithic metals and conventional alloys have been replaced by aluminium metal matrix composites in many applications in the field of automobile and aerospace due to high strength to weight ratio, fracture limit, toughness, wear and sustaining properties at the higher temperature. The paper thus deals with the fabrication of aluminium metal matrix composites with reinforcement of TiB2 in varying percentage in aluminium alloy Al 1100 through the stir casting process. The mechanical and tribological properties were studied. The fabricated composite exhibited improved tensile strength and hardness whereas ductility reduced. The wear resistances of composites were found directly proportional to the weight percentages of TiB2 in developed aluminium matrix composites.
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International Journal of Emerging Research in Management and Technology, 2018
Aluminium Metal Matrix Composites (AMMCs) are the new class of materials substituting many industrial materials. It is due to its superior qualities compared to conventional materials. AMMCs has found a versatile application because it has aluminium in matrix phase hence light in weight and also it can acquire different properties as per reinforcements used. Sintering is one of the prominent methods used to manufacture AMMCs. Sintering process is used in Powder Metallurgy in which small powdered particles are heated to bond together. The process enhances the strength as well as other mechanical and tribological properties. The technology enables us to shape materials difficult to machine, parts with complex geometries, materials having high melting point, parts with close dimensional tolerances, or to combine different materials which is not possible with any other process. The most important part is that the density of the product can be controlled according to the requirements an...