Preparation and Mechanical Characterization of Stir Cast Hybrid Al7075-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3 &lt;/sub&gt;-B&lt;sub&gt;4&lt;/sub&gt;C Metal Matrix Composites

Dhanalakshmi, S.; Mohanasundararaju, N; Venkatakrishnan, P.

doi:10.4028/www.scientific.net/amm.592-594.705

Cited by 33 publications

(10 citation statements)

References 5 publications

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“…Generally, the hard ceramic particles avoid the motion of dislocations which leads to improvement in the results of hardness [30]. As the hard ceramic reinforcements are added, the hardness is increased, which exhibits more resistance to plastic deformation with in the composite rendering increase in hardness of the composites [31]. Similar outcomes were observed by Rajesh Kumar Bhushan [10] the results conclude that the silicon carbide particles form barricades which hinder the dislocation motion.…”

Section: Hardnesssupporting

confidence: 59%

Experimental studies of different quenching media on mechanical and wear behavior of Al7075/SiC/Al2O3 hybrid composites

Ravikumar¹,

Reddappa

Suresh

et al. 2020

Frattura Ed Integrità Strutturale

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The effects of SiC-Al2O3 particle in the Al alloy on the mechanical and wear characteristics of stir-casted Composites have been reported. The Al7075 is reinforced with 2, 4, 6 and 8 wt. % of (SiC + Al2O3) to manufacture the hybrid composite. Ceramic particulates were added into Al alloy to achieve the low wear rate and improving mechanical properties. Hardening of casted specimens at 480ºC for the duration of 2 hrs and the specimens were quenched into two different quenching media (water and ice cubes). Finally, age-hardening were carried out at the temperature of 160ºC for the duration of 4 hrs and cooled at room temperature. The tensile strength, hardness and wear behaviour of MMCs are evaluated on the un-treated and heat treated composite. The tensile strength and hardness of MMCs increases by incorporating SiC-Al2O3 particulates. The wear behaviour of the MMCs containing SiC-Al2O3 particulates revealed the high wear-resistance. The heat-treatment had considerably improved the properties when compared to the un-heat treated composites. The composites with the highest tensile strength, hardness and enhanced wear resistance were found in the composites quenched in ice cubes. Worned surfaces of the composite specimens were studied by using SEM and XRD analysis

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Section: Hardnesssupporting

confidence: 59%

Experimental studies of different quenching media on mechanical and wear behavior of Al7075/SiC/Al2O3 hybrid composites

Ravikumar¹,

Reddappa

Suresh

et al. 2020

Frattura Ed Integrità Strutturale

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“…This is owing to the reinforcement particles serving as tensile stress resistance, as well as the strengthening mechanism via reinforcement load factor in the produced sample. B 4 C and Al 2 O 3 -reinforced Al7075 matrix composites were prepared by Dhanalakshmi et al [92] through stir casting method, and they observed increase in hardness and tensile strength of the composites with increase in the weight percentage of B 4 C particulates in the aluminum matrix. This is consistent with the findings of Selvam et al [93], who used SiC and fly ash as reinforcing materials and obtained similar results.…”

Section: Nomentioning

confidence: 99%

“…Dhanalakshmi et al [92] investigated the influence of Al2O3/B4C particles on structure and mechanical properties of AA7075/Al2O3/B4C AMC which were fab through the liquid metallurgy route (stir casting method). In the mechanical char tics of the composites, the influence of the mass percentage of reinforcing elements weight of Al2O3 varied by 3, 6, 9, 12, and 15 wt.%, while the B4C weight percenta constantly maintained (3%).…”

Section: Hardness Of Hamcmentioning

confidence: 99%

Recent Progress in Hybrid Aluminum Composite: Manufacturing and Application

Fanani

Surojo

Prabowo

et al. 2021

Metals

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Due to their excellent properties, the requirement for materials with higher characteristics has transformed primary alloy into composite materials. Composites are particularly essential for various applications in numerous engineering purposes because of their superior mechanical, physical, and machining qualities. Compared to traditional materials, aluminum composite has various advantages and superior characteristics. To reduce production costs and obtain the desired properties, the researchers developed a hybrid aluminum matrix composite (HAMC), an AMC with two or more types of reinforcement. Further studies were conducted to improve the qualities and manufacturing processes of composites to improve their properties. Various methods are available to HAMC manufacturing, and different manufacturing methods result in different characteristics of HAMC composites, viewed from physical properties, mechanical properties, and production cost. In addition, differences in the type, size, and amount of reinforcement produce various hybrid composite properties, especially in the physical properties, mechanical properties, and tribological behavior of HAMC. This work presents a comprehensive review of recent progress in HAMC study with various reinforcement particles, manufacturing techniques, physical, mechanical, and tribological properties of HAMC. On the other side, this work provides discussion for application, challenges, and future work conducted for HAMC development.

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“…Many endeavors have been made to additionally work on the mechanical properties of the 7075 aluminum chemical. Improvement in the exhibition of most aluminum combinations can be credited to adjustments to chemical synthesis and additionally utilizing new fabrication strategies [18]. Al7075 are significant chemicals among 7xxx series aluminum combination assignments and are generally utilized in safeguard areas because of intrinsic properties like light weight and high strength materials when contrasted with solid materials [19].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Mechanical Characterization of TiC Particles Reinforced Al7075 Alloy Composites

Prasad¹,

Dayanand²,

Rajesh

et al. 2022

Advances in Materials Science and Engineering

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The current exploration work focuses on the fabrication of aluminum 7075 matrix composites built up with different weight levels of titanium carbide particles by a traditional stir casting process. In particular, the combination of high hardness and flexible modulus, low density, great wettability, and low synthetic reactivity with aluminum melt makes TiC particle an attractive material. From 0% to 6 wt.% of reinforcement is introduced in steps of 3 wt.%. Aluminum matrix composites are studied in depth to learn more about their microstructures and mechanical properties. TiC particles were uniformly dispersed in the aluminum lattice, as shown by scanning electron micrographs of the material’s microstructure. As the weight of the TiC particles in the aluminum lattice increases, so does the density of the composites. The X-ray diffraction technique has also been used to detect the phase of TiC particles. As the amount of TiC particles in the aluminum matrix increases, the material’s mechanical properties, such as ultimate tensile strength and hardness, increase at the expense of ductility. The preorganized composites have also undergone fractography testing.

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Preparation and Mechanical Characterization of Stir Cast Hybrid Al7075-Al<sub>2</sub>O<sub>3 </sub>-B<sub>4</sub>C Metal Matrix Composites

Cited by 33 publications

References 5 publications

Experimental studies of different quenching media on mechanical and wear behavior of Al7075/SiC/Al2O3 hybrid composites

Experimental studies of different quenching media on mechanical and wear behavior of Al7075/SiC/Al2O3 hybrid composites

Recent Progress in Hybrid Aluminum Composite: Manufacturing and Application

Preparation and Mechanical Characterization of TiC Particles Reinforced Al7075 Alloy Composites

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