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Metal Manufacturing Processes and Energy Systems
Published in Swapan Kumar Dutta, Jitendra Saxena, Binoy Krishna Choudhury, Energy Efficiency and Conservation in Metal Industries, 2023
Swapan Kumar Dutta, Binoy Krishna Choudhury
Aluminum is known for its light weight (about one-third that of iron of same volume), high conductivity (more than half that of copper of same shape) and moderate cost (about three times that of iron of same mass). Unlike iron, aluminum does not rust. Thus, it is extensively used in electricity transmission with iron core to enhance the tensile strength, utensils, foils and cans for packing medicines and food, and an array of applications when alloyed with copper, magnesium, zinc, silicon and manganese. Duralumin, hindalium, Y-alloy, magnalium, etc., are used in aerospace, automobile, packaging and transportation industries for the properties have been enhanced with mechanical strength, fatigue resistance, etc.
The SEAT Dining Hall in Barcelona (1956): Aeronautical construction applied to architecture
Published in João Mascarenhas-Mateus, Ana Paula Pires, Manuel Marques Caiado, Ivo Veiga, History of Construction Cultures, 2021
Duralumin also improved corrosion resistance, which is why it was fundamental for seaplane manufacture. In 1926 CASA obtained a license to manufacture the Dornier Do J Wal seaplane, of which it produced 31 units at its factory in Cádiz. For its construction, they used a Spanish commercial version of “Duralumin” known as “Pantal”, as detailed in the UNE 38.3344 standard. CASA engineers proposed Pantal for the design of the SEAT Dining Hall. Besides, the profiles used to build this structure are the same that CASA used to design its airplanes, such as the Alcotán (C-201) and Halcón (C-202) models, which remained only in prototypes, and the already built twin-engine transport plane Azor (C-207).
Aluminium and its alloys
Published in William Bolton, R.A. Higgins, Materials for Engineers and Technicians, 2020
We will assume that we have an aluminium-copper alloy containing 4% copper, since this is the basic composition of some of the duralumin alloys in use. Suppose the alloy has been extruded in the form of rod and has been allowed to cool slowly to room temperature. This slow cooling will have allowed plenty of opportunity for the copper to precipitate from solid solution – not as particles of pure copper, but as small crystals of an aluminium-copper compound CuAl2 (see Figure 17.3C). Since this intermetallic compound is hard and brittle, it will render the alloy brittle. Moreover, since only about 0.2% of copper (point A in Figure 17.4) remained behind in the solid solution α, this solid solution will lack strength. Hence, the mechanical properties of the alloy as a whole will be unsatisfactory.
60 Years’ marine corrosion of aluminium alloy 24S (2024) from an historic aircraft wreck site: implications for conservation
Published in Corrosion Engineering, Science and Technology, 2021
E. Rocca, J. Tardelli, F. Mirambet
The first aluminium alloy with high mechanical properties was developed in Germany by Alfred Wilm to make light cartridge cases in 1909 [18,19]. The composition from German factory (Dürener Metallwerke A.G.), under the trademark Duralumin, was 0.5 wt-% Mg, 3.5–4.5 wt-% Cu and 0.25–1 wt-% Mn.