Mechanical Properties of Friction Stir Processed B4C/Gr-Reinforced Hybrid Composite Fabricated Through Stir Casting Method

Agrawal, Anant Prakash; Ali, Masood Ashraf; Rathore, Sachin; Singh, Ratnesh Kumar Raj

doi:10.1007/s40962-023-01078-7

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…However, current research in these areas still needs to improve on coarse grains, inhomogeneous phase transitions, interfacial interaction mechanisms that still need to be sufficiently clear, aggregation behavior of ceramic particles, and poor wettability in aluminium liquids 33 . The presence of Zn, Fe, Zr, and additional elements in the aluminium alloy melt also makes the hardness and wear resistance of the alloy decrease 34 , 35 . In response to the above problems, some scholars have found that the addition of ceramic-like particles to aluminium alloys can significantly improve the distribution of the second phase in the alloy and improve the performance of aluminium matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of nano-BN inclusion and mechanism involved on aluminium-copper alloy

Zhang,

Zeng,

Wang

et al. 2024

Sci Rep

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Taking advantage of the high specific surface area of the nanoparticles, boron nitride (BN) nanoparticles were incorporated into the semi-solidified aluminium-copper alloy Al–5Cu–Mn (ZL201) system during the casting process, and its properties and enhancement mechanism were studied. The results shown that the BN in the new composite material is more uniformly distributed in the second phase (Al2Cu), which can promote grain refinement and enhance the bonding with the aluminium-based interface, and the formation of stable phases such as AlB2, AlN, CuN, etc. makes the tensile strength and hardness of the material to be significantly improved (8.5%, 10.2%, respectively). The mechanism of the action of BN in Al2Cu was analyzed by establishing an atomic model and after calculation: BN can undergo strong adsorption on the surface of Al2Cu (0 0 1), and the adsorption energy is lower at the bridge sites on the two cut-off surfaces, which makes the binding of BN to the aluminum base more stable. The charge transfer between B, N and each atom of the matrix can promote the formation of strong covalent bonds Al–N, Cu–N and Al–B bonds, which can increase the dislocation density and hinder the grain boundary slip within the alloy.

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Section: Introductionmentioning

confidence: 99%

Influence of nano-BN inclusion and mechanism involved on aluminium-copper alloy

Zhang,

Zeng,

Wang

et al. 2024

Sci Rep

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Microstructure and Mechanical Properties of 2024 Aluminum Alloy with and Without Rare-Earth and Thermomechanical Treatment After Multi-pass Stir Friction Processing

El-Shorbagy,

El-Baradie,

Abdel-Aziz

2023

Inter Metalcast

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Friction stir processing (FSP) is the most effective severe plastic deformation process for creating materials with very fine grains and good properties. The target of the present research is to investigate the influence of FSP on the microstructure and mechanical properties of homogenized 2024 aluminum alloy with and without rare-earth (RE) and thermomechanically treated conditions (TMT). The rare-earth elements used were Ce and La in the form of a master alloy containing (50% Ce + 50% La). The casting of 2024 aluminum alloys, both with and without (Ce + La), was carried out using the conventional stir cast technique. Part of the obtained alloys was homogenized, whereas the other part was thermomechanically treated (TMT). The homogenized 2024 material was exposed to FSP with multiple passes (one, two, and three) to obtain the suitable pass number. After that, the best pass number was performed on the 2024 aluminum alloy refined with RE (Ce + La) and TMT materials. The microstructures in different conditions (homogenized and stir friction) were examined by optical and scan microscopes attached with EDS and Map analyzer. At the same time, a tensile test was conducted to assess the mechanical properties. The findings indicated that the microstructures were significantly refined after adding RE (Ce + La) or applying the TMT technique. Whereas, the microstructures were greatly improved after applying FSP to both conditions. Ultra-fine grains were observed for both TMT and RE-containing alloys after FSP. On the other hand, the results of mechanical properties were significantly increased after applying multiple passes of FSP. The optimum results were obtained when two passes of stir friction were applied to the TMT alloy condition.

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Investigating the Effects of Adding Si3N4 on Microstructural and Mechanical Characteristics of AA7075-based TiB2-Reinforced Hybrid MMCs

Agrawal,

Srivastava

2023

Inter Metalcast

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Mechanical Properties of Friction Stir Processed B4C/Gr-Reinforced Hybrid Composite Fabricated Through Stir Casting Method

Cited by 5 publications

References 21 publications

Influence of nano-BN inclusion and mechanism involved on aluminium-copper alloy

Influence of nano-BN inclusion and mechanism involved on aluminium-copper alloy

Microstructure and Mechanical Properties of 2024 Aluminum Alloy with and Without Rare-Earth and Thermomechanical Treatment After Multi-pass Stir Friction Processing

Investigating the Effects of Adding Si3N4 on Microstructural and Mechanical Characteristics of AA7075-based TiB2-Reinforced Hybrid MMCs

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