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Influence of the heat treatment condition of alloy AlCu4Mg1 on the microstructure and properties of anodic oxide layers
Institute of Materials Science and Engineering, Chemnitz University of Technology, Chemnitz, Germany.ORCID iD: 0000-0002-7120-1489
2017 (English)In: IOP Conference Series: Materials Science and Engineering, Institute of Physics Publishing (IOPP), 2017, Vol. 181, no 1, article id 012043Conference paper, Published paper (Refereed)
Abstract [en]

Due to their outstanding specific mechanical properties, high-strength, age-hardenable aluminum alloys offer a high potential for lightweight security-related applications. However, the use of copper-alloyed aluminum is limited because of their susceptibility to selective corrosion and their low wear resistance. These restrictions can be overcome and new applications can be opened up by the generation of protective anodic aluminum oxide layers. In contrast to the anodic oxidation of unalloyed aluminum, oxide layers produced on copper-rich alloys exhibit a significantly more complex pore structure. It is the aim of the investigation to identify the influence of microstructural parameters such as size and distribution of the strengthening precipitations on the coating microstructure. The aluminum alloy EN AW-2024 (AlCu4Mg1) in different heat treatment conditions serves as substrate material. The influence of the strengthening precipitations' size and distribution on the development of the pore structure is investigated by the use of high-resolution scanning electron microscopy. Integral coating properties are characterized by non-destructive and light-microscopic thickness measurements and instrumented indentation tests. 

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 181, no 1, article id 012043
Series
IOP Conference Series: Materials Science and Engineering ; Volume 181, Issue 1
Keywords [en]
Aluminum, Aluminum copper alloys, Anodic oxidation, Catalyst deactivation, Coatings, Copper, Heat treatment, High strength alloys, Microstructure, Oxidation, Pore structure, Scanning electron microscopy, Thickness measurement, Wear resistance, Age-hardenable aluminum alloys, Coating microstructures, Heat treatment conditions, High-resolution scanning electron microscopies, Instrumented indentation, Lightweight securities, Microstructural parameters, Microstructure and properties, Aluminum alloys
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-51165DOI: 10.1088/1757-899X/181/1/012043ISI: 000400257700068Scopus ID: 2-s2.0-85016560978OAI: oai:DiVA.org:hj-51165DiVA, id: diva2:1507540
Conference
19th Chemnitz Seminar on Materials Engineering, 16 March 2017 through 17 March 2017
Available from: 2020-12-08 Created: 2020-12-08 Last updated: 2020-12-08Bibliographically approved

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Sieber, Maximilian

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