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Conclusion and challenges
Published in S. Thirumalai Kumaran, Tae Jo Ko, S. Suresh Kumar, Temel Varol, Materials for Lightweight Constructions, 2023
G. Velmurugan, R. Sundarakannan
Despite the growing interest in high-performance composites like carbon fiber, aluminum alloys account for a large amount of aeronautical structural weight. Advanced aluminum alloys are a desirable lightweight material in many aerospace structural applications due to their high specific strength and stiffness, outstanding ductility and corrosion resistance, relatively cheap cost, and good manufacturability and reliability. By altering compositions and heat treatment procedures, aluminum alloys can provide a wide range of material qualities to fulfill a variety of application needs.Pros: The technology is truly cutting-edge, with excellent strength, stiffness, and energy dissipation.Cons: Costlier than steel, more difficult to combine with other materials, and limited formability.
Materials
Published in Ansel C. Ugural, Mechanical Engineering Design, 2022
Aluminum alloys are very versatile materials, having good electrical and thermal conductivity, as well as light reflectivity. They possess a high strength-to-weight ratio, which can be a very important consideration in the design of, for example, aircraft, missiles, and trains. Aluminum has a high resistance to most corrosive atmospheres, because it readily forms a passive oxide surface coating. Lightweight aluminum alloys have extensive applications in manufactured products. Aluminum is readily formed, drawn, stamped, spun, machined, welded, or brazed. The high-strength aluminum alloys have practically the same strength as mild steel.
Materials
Published in Ansel C. Ugural, Youngjin Chung, Errol A. Ugural, Mechanical Engineering Design, 2020
Ansel C. Ugural, Youngjin Chung, Errol A. Ugural
Aluminum alloys are very versatile materials, having good electrical and thermal conductivity, as well as light reflectivity. They possess a high strength-to-weight ratio, which can be a very important consideration in the design of, for example, aircraft, missiles, and trains. Aluminum has a high resistance to most corrosive atmospheres, because it readily forms a passive oxide surface coating. Lightweight aluminum alloys have extensive applications in manufactured products. Aluminum is readily formed, drawn, stamped, spun, machined, welded, or brazed. The high-strength aluminum alloys have practically the same strength as mild steel.
Evaluation of Crocin as green corrosion inhibitor for aluminum in NaCl solution
Published in Chemical Engineering Communications, 2023
Paraskevi Pantazopoulou, Sofia Kalogeropoulou, Stamatina Theohari, Eleftherios Papamichalis, Demeter Tzeli
Aluminum alloys are widely used in various applications, including packaging, construction, shipbuilding, and automotive and aerospace industry, due to their low cost and interesting properties of lightweight, ductility, durability, and recyclability. Besides, aluminum is resistant to corrosion, as a very thin passive oxide layer of about 1-3 nm develops spontaneously on its surface when it is exposed to air or to aqueous environment. This layer consists of Al2O3, Al(OH)3, AlO·OH, and their hydrous forms, with certain oxyhydroxides present in the bulk of the aluminum oxide. The hydration of the surface is followed by dissociation and ionization, leading to the formation of [Al(OH)2]+ or AlO·O- (Alexander et al. 2000; Lee and Pyun 1995; Sheasby et al. 1987).
Hybrid turning process by interacting ultrasonic vibration and laser energies
Published in Materials and Manufacturing Processes, 2023
Aluminum alloys are widely utilized in automobiles, marine, construction, automobile, electromechanical, etc., because of numerous properties like higher strength-to-weight ratio, higher ductility, lower melting temperature, and higher formability.[1,2] Machining parameters, tool parameters, and machining conditions are mainly responsible for the machinability of the materials.[3] Large machining forces, higher heat generation, poor surface quality, and long and string chips are major challenges during the machining of aluminum alloys.[4] Usually, cutting fluids are used to overcome the above-mentioned challenges.[5,6] Though the cost of cutting fluids is about one-fifth of the overall production cost in addition to disposal and equipment of cutting fluids.[7] Thus, industries are moving toward dry machining to eliminate waste reduction and environmental pollution. Therefore, new methodologies are developed to eliminate coolants and enhance the machinability of aluminum alloys, for example, cryogenic machining, advanced cutting tools, and hybrid machining.[8]
A Review on Closed Cell Metal Matrix Syntactic Foams: A Green Initiative towards Eco-Sustainability
Published in Materials and Manufacturing Processes, 2021
Raja Thiyagarajan, M. Senthil kumar
Among the various metal matrix syntactic foams, aluminum is the most commonly used matrix material due to low density, energy-efficient materials, low cost, easy availability, and excellent casting nature.[45,46] The aluminum matrix syntactic foam AMSF has better strength and higher stiffness when compared with conventional aluminum metallic foams.[47] Moreover, the energy absorbing characteristics have been improved in aluminum-based syntactic foams in various reported studies.[48] The most commonly used aluminum alloy series such as Al-Si, Al-Si-Mg, Al-Cu, Al-Zn, and Al-Mg.[49–51] The silicon alloying element in aluminum alloys reduces the melting point temperature into 575°C, and it also reduces the viscosity of the molten metals. Due to that, handling of molten metal becomes easy and improves the castability of the Al-Si alloy series. The magnesium addition on the aluminum alloy series improves the wettability.[52]