Investigation of Mechanical Properties and Microstructure of AA2024 and AA7075

Öksüz, Keri̇m Emre; Bağırov, Hanlar; Şi̇mşi̇r, Mehmet; Karpuzoğlu, Ceyhun; Özbölük, Aykut; Demirhan, Yusuf Z.; Bilgin, Hayrettin U.

doi:10.4028/www.scientific.net/amm.390.547

Cited by 11 publications

(5 citation statements)

References 9 publications

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“…The presence of AlCuMg precipitates in the stir zone can improve the strength and The dissimilar aluminum alloys AA2024 and AA7075 have different material properties, making them susceptible to fracture. For example, AA7075 had a higher degree of brittleness than AA2024, making it more susceptible to fracture when subjected to external mechanical loading [39]. Using incorrect welding parameters in friction stir welding can affect the quality of the weld and increase the likelihood of cracking.…”

Section: Discussionmentioning

confidence: 99%

Microstructural and Mechanical Characterization of the Dissimilar AA7075 and AA2024 Aluminum Alloys Reinforced with Different Carbide Particles Welded by Friction Stir Welding

Moustafa,

Sharaf,

Alsoruji

et al. 2023

J. Compos. Sci.

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In the present study, AA7075 and AA2024 aluminum alloys were reinforced with ZrC, and the particles of WC were joined using the friction stir welding (FSW) method. The microstructural and mechanical properties of the welds were investigated using SEM, EDS, and tensile tests. The FSW process resulted in high-quality welds with fine grain structure; the stirred zone has 666% smaller grain size than AA7075 and AA2024 aluminum alloys. The tensile test showed strong and ductile welds. The fracture test showed ductile and less brittle composite joints of AA2024 and AA7075 alloys reinforced with WC and ZrC. The processing parameters in the FSW process significantly affect tensile strength (UTS); therefore, the improvement of UTS with tool speed is much greater than with welding speed. Increasing the tool speed from 400 to 560 rpm increased UTS by 7.1%, and from 560 to 700 rpm by 5.4%. The tensile test results showed that the welds exhibited considerable strength and ductility. Fracture analysis showed that the composite joints made of different AA2024 and AA7075 alloys and reinforced with WC and ZrC were ductile and less brittle. This study showed that FSW can efficiently fuse different aluminum alloys reinforced with ceramic particles.

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Section: Discussionmentioning

confidence: 99%

Microstructural and Mechanical Characterization of the Dissimilar AA7075 and AA2024 Aluminum Alloys Reinforced with Different Carbide Particles Welded by Friction Stir Welding

Moustafa,

Sharaf,

Alsoruji

et al. 2023

J. Compos. Sci.

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show abstract

“…strength, along with their ease of formability for complex shapes and parts [8]. Specifically, 7075-T6 alloy possesses higher yield and ultimate strength, with slightly higher density than the 6061-T6 alloy [9].…”

Section: Journal Of Engineering and Technological Sciencesmentioning

confidence: 99%

Investigation of Impact Properties under Instrumented Charpy Test

Zainuddin,

Ali,

Zakaria

et al. 2024

J. Eng. Technol. Sci.

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The Instrumented Charpy impact test is a promising method for determining a material’s impact response. Stainless steel has higher impact energy absorption capacity, high tensile, and yield strength compared to aluminum. Performance varies among grades; for instance, Aluminum 7075-T6 exceeds Aluminum 6061-T6 in tensile and yield strength. However, information regarding their energy capacity and impact signal pattern is lacking. This study investigated the impact properties using a Charpy machine, a data acquisition system, and a sensing element. Strain gauges were used to record the impact strain signal, enabling the analysis of impact duration, maximum strain, and the area under the curve. Specimens experimented include Stainless Steel 304, Aluminum Alloy 6061-T6, and Aluminum Alloy 7075-T6. The Charpy machine measures absorbed energy, while the theoretical impact energy is computed from software data. The area under the strain-time curve reflects the material energy absorption capacity. Stainless Steel 304 demonstrates superior energy absorbed, impact duration, and area under the curve, followed by Aluminum 6061-T6 and Aluminum 7075-T6. Despite higher tensile and yield strength, the inferior impact response of Aluminum 7075-T6 highlights the importance of factors like ductility, elongation, and alloy composition. Consequently, Aluminum 6061 is commonly used in the automotive industry, while Aluminum 7075 is preferred in aerospace applications.

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“…Nickel-based super alloys are used in the development of aircraft exhaust valves and turbine rotors due to their high creep resistance at higher temperatures [12]. Research has been carried out on improving the microstructure and mechanical properties of stainless-steel alloys [13][14][15][16][17][18][19], aluminum alloys [20][21][22][23][24][25][26], titanium alloys [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41], and nickel-based super alloys [42,43] using different techniques like adding carbides [44][45][46][47], alloying elements [48][49][50][51], and heat treatments [20,21,42]. Conventional fabrication involves multiple processes and is time consuming.…”

Section: Introductionmentioning

confidence: 99%

Recent Advancements in Material Waste Recycling: Conventional, Direct Conversion, and Additive Manufacturing Techniques

Golvaskar,

Ojo,

Kannan

2024

Recycling

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To improve the microstructure and mechanical properties of fundamental materials including aluminum, stainless steel, superalloys, and titanium alloys, traditional manufacturing techniques have for years been utilized in critical sectors including the aerospace and nuclear industries. However, additive manufacturing has become an efficient and effective means for fabricating these materials with superior mechanical attributes, making it easier to develop complex parts with relative ease compared to conventional processes. The waste generated in additive manufacturing processes are usually in the form of powders, while that of conventional processes come in the form of chips. The current study focuses on the features and uses of various typical recycling methods for traditional and additive manufacturing that are presently utilized to recycle material waste from both processes. Additionally, the main factors impacting the microstructural features and density of the chip-unified components are discussed. Moreover, it recommends a novel approach for recycling chips, while improving the process of development, bonding quality of the chips, microstructure, overall mechanical properties, and fostering sustainable and environmentally friendly engineering.

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Investigation of Mechanical Properties and Microstructure of AA2024 and AA7075

Cited by 11 publications

References 9 publications

Microstructural and Mechanical Characterization of the Dissimilar AA7075 and AA2024 Aluminum Alloys Reinforced with Different Carbide Particles Welded by Friction Stir Welding

Microstructural and Mechanical Characterization of the Dissimilar AA7075 and AA2024 Aluminum Alloys Reinforced with Different Carbide Particles Welded by Friction Stir Welding

Investigation of Impact Properties under Instrumented Charpy Test

Recent Advancements in Material Waste Recycling: Conventional, Direct Conversion, and Additive Manufacturing Techniques

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