Production of AA1050/silica fume composite by bobbin tool-friction stir processing: Microstructure, composition and mechanical properties

Ahmed, Muhammad Adeel; Seleman, Mohamed M. El-Sayed; Eid, Rana G.; Zawrah, M.F.

doi:10.1016/j.cirpj.2022.07.002

Cited by 14 publications

(12 citation statements)

References 37 publications

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“…15 Many studies have been conducted on the production of microstructure in the stirring zone of the samples produced by FSP, and it seems that microstructure has a significant role due to dynamic recrystallization. 16,17 In studies on the FSP of aluminum 1050, it was shown that the surface hardness is higher than the base metal, which is due to the material microstructure and the increase in the density of dislocations. 18 Kwon et al conducted studies on the production of superfine aluminum 1050 by FSP.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the microstructure and tensile strength of SiC reinforced AA1050 aluminum composite wires fabricated by friction stir extrusion process

Soleimanipour

Abedinzadeh

Eftekhari

et al. 2023

Journal of Composite Materials

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In this study, the friction stir extrusion process as a new method was used to produce AA 1050 aluminum composite wires reinforced with silicon carbide (SiC) powder. The effect of process parameters on temperature (T), porosity (P) and ultimate tensile strength (UTS) was evaluated using the response surface method based on the Box-Behnken design. The input parameters included rotational speed (RS), extrusion force (EF) and reinforcement weight percentage (RF). Moreover, the microstructural evaluation of composite samples was conducted using optical microscope and scanning electron microscope. Finally, analysis of variance and regression analysis were used to obtain an appropriate model and confirm the accuracy of the results. The results showed that the temperature was increased by increasing the rotational speed to 1000 r/min and decreasing the extrusion force to 5.5 kN. Moreover, the lowest porosity value (averaged = 0.5%), and the highest tensile strength value (averaged = 153 MPa) were obtained at RS = 750 r/min, EF = 10.5 kN and RF = 3%. This can be attributed to the uniform distribution of reinforcing particles and strong interfacial bonding between SiC particles and the aluminum matrix. Also, the most effective parameter in the process was rotational speed which exhibited the greatest influence on P (53%) and UTS (41%) of composite samples. However, reinforcement weight percentage had the least effect on P (14%) and UTS (28%).

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Section: Introductionmentioning

confidence: 99%

Evaluation of the microstructure and tensile strength of SiC reinforced AA1050 aluminum composite wires fabricated by friction stir extrusion process

Soleimanipour

Abedinzadeh

Eftekhari

et al. 2023

Journal of Composite Materials

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“…2,3 FSP is a versatile technique for repairing casting defects, 4 local modifications of microstructure, 5 achieving grain refinement, 6 and producing surface composites in metals and alloys. 7 To accomplish these functions, singlepass FSP is carried out. 8 In some cases, multi-pass FSP with 100% overlapping is performed to achieve the additional grain refining and homogeneous dispersion of composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of overlapping technique on the grain size distribution and grain orientation in friction stir processed aluminum alloys

Satyanarayana

Suresh²,

Janaki

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Friction stir processing (FSP) with the overlapping method is the best approach for achieving bulk surface modification in metals and alloys. In the current study, a bulk-area processing region was created in aluminum alloys using FSP with pin overlapping. The grain size distribution and texture orientations have been examined using the electron backscattered diffraction technique. The findings revealed that the grain size distribution is uniform throughout the processed region, but the texture orientation is varied from one pass to other overlapping passes. Finally, it was identified from the results that the overlapping technique does not affect the grain size but affects the texture orientations and their intensities in each overlapping pass.

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“…The stirring zone (SZ) temperature of the BT-FSW/P material is generated by the stirring tool action (pin and two shoulders) [ 9 , 10 ]. The processing zone (PZ) temperature during the BT-FSP depended directly on the rotational speed (RS) and inversely to travel speed (TS) [ 11 , 12 , 13 ]. Optimizing the processing temperature is critical to achieving a refined grain structure.…”

Section: Introductionmentioning

confidence: 99%

“…This motivates using the BT design to process aluminum and its alloys to refine microstructure or produce aluminum matrix composites. Recently, only two works have been achieved for utilizing the BT-FSP to produce composite materials: Fuse et al [ 25 ] produced AA6061/B 4 C Dual-sided composite, and Ahmed et al [ 11 ] fabricated the AA1050/nano-silica fume composite. In addition, there is a lack of publication in the area of BT-FSP of aluminum alloys.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

et al. 2022

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The current research designed a statistical model for the bobbin tool friction stir processing (BT-FSP) of AA1050 aluminum alloy using the Response Surface Method (RSM). The analysis studied the influence of tool travel speeds of 100, 200, and 300 mm/min and different pin geometries (triangle, square, and cylindrical) at a constant tool rotation speed (RS) of 600 rpm on processing 8 mm thickness AA1050. The developed mathematical model optimizes the effect of the applied BT-FSP parameters on machine torque, processing zone (PZ) temperature, surface roughness, hardness values, and ultimate tensile strength (UTS). The experimental design is based on the Face Central Composite Design (FCCD), using linear and quadratic polynomial equations to develop the mathematical models. The results show that the proposed model adequately predicts the responses within the processing parameters, and the pin geometry is the most influential parameter during the BT-FSP of AA1050. The analysis of variance exhibit that the developed mathematical models can effectively predict the values of the machine torque, PZ temperature, surface roughness, hardness, and UTS with a confidence level of over 95% for the AA1050 BT-FSP. The optimization process shows that the optimum parameters to attain the highest mechanical properties in terms of hardness and tensile strength at the lowest surface roughness and machine torque are travel speed (TS) of 200 mm/min using cylindrical (Cy) pin geometry at the constant RS of 600 rpm. The PZ temperature of the processed specimens decreased with increasing TS at different pin geometries. Meanwhile, the surface roughness of the processed passes and machine torque increased with increasing the TS at different pin geometries. Increasing TS from 100 to 300 mm/min increases the hardness values of the processed materials using different pin geometries. The highest UTS of 79 MPa for the processed specimens was attained at the TS of 200 mm/min and RS of 600 rpm using the Cy pin geometry.

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Production of AA1050/silica fume composite by bobbin tool-friction stir processing: Microstructure, composition and mechanical properties

Cited by 14 publications

References 37 publications

Evaluation of the microstructure and tensile strength of SiC reinforced AA1050 aluminum composite wires fabricated by friction stir extrusion process

Evaluation of the microstructure and tensile strength of SiC reinforced AA1050 aluminum composite wires fabricated by friction stir extrusion process

Effect of overlapping technique on the grain size distribution and grain orientation in friction stir processed aluminum alloys

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

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