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Title:High temperature oxidation of EN AW 7075 aluminium alloy
Authors:ID Velikajne, Nejc (Author)
ID Balaško, Tilen (Author)
ID Burja, Jaka (Author)
ID Godec, Matjaž (Author)
ID Paulin, Irena (Author)
Files:.pdf PDF - Presentation file, download (897,18 KB)
MD5: BB3F972F9750D289E25070B11F0B69A0
 
URL URL - Source URL, visit https://www.confer.cz/metal/2023/4733-high-temperature-oxidation-of-aa7075-aluminium-alloy
 
Language:English
Typology:1.08 - Published Scientific Conference Contribution
Organization:Logo IMT - Institute of Metals and Technology
Abstract:Aluminium alloys are highly valued for their exceptional strength-to-weight ratio, making them a preferred choice in structural applications. Among these alloys, EN AW 7075 stands out for its superior mechanical properties, finding widespread use in industries such as aerospace, mechanical engineering, and sports equipment. This study investigates the high-temperature oxidation behavior of EN AW 7075 alloy. The gathered results can provide valuable insights into the behavior of the mentioned alloy during the selective laser melting (SLM) process. These results can contribute to a better understanding of how the alloy responds to specific conditions and parameters. SLM is an additive manufacturing technique. The process involves the sequential steps of preheating, melting, and rapid cooling of metal powder. To minimize the influence of oxygen, the build chamber is filled with inert gas. A protective argon atmosphere is continuously maintained. However, despite these precautions, oxidation can still occur, leading to potential issues in the final product. Hence, we examined the oxidation kinetics of the EN AW 7075 alloy in an oxygen atmosphere in the temperature range of 300-500 °C. The findings of this investigation significantly contribute to an understanding of the behavior of the alloy during high-temperature oxidation, particularly for ongoing studies focused on processing Al-Zn-Mg-Cu alloys using the selective laser melting technique. Thermogravimetry was employed to analyze the oxidizing behavior, with three samples subjected to a 6-hour exposure in an oxidizing atmosphere at temperatures of 300, 400, and 500 °C. Surprisingly, no oxidation occurred, as indicated by the negligible and negative changes in mass observed across all samples.
Keywords:EN AW 7075, high-temperature oxidation, oxide film, selective laser melting
Publication status:Published
Publication version:Version of Record
Publisher:TANGER
Year of publishing:2024
Number of pages:Str. 673-678
Source:Češka
PID:20.500.12556/DiRROS-18288 New window
UDC:669.715
ISSN on article:2694-9296
DOI:10.37904/metal.2023.4733 New window
COBISS.SI-ID:186890499 New window
Copyright:Licenca Creative Commons je navedena na pristajalni strani članka (glej izvorni URL): "© This is an open access article distributed under the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/)". (Datum opombe 4. 4. 2023)
Note:Nasl. z nasl. zaslona; Opis vira z dne 27. 2. 2024;
Publication date in DiRROS:28.02.2024
Views:833
Downloads:491
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VELIKAJNE, Nejc, BALAŠKO, Tilen, BURJA, Jaka, GODEC, Matjaž and PAULIN, Irena, 2024, High temperature oxidation of EN AW 7075 aluminium alloy. In : Metal 2023 [online]. Published Scientific Conference Contribution. Češka : TANGER. 2024. p. 673–678. [Accessed 9 April 2025]. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=18288
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Record is a part of a proceedings

Title:Metal 2023
COBISS.SI-ID:185388291 New window

Record is a part of a journal

Title:Metal ...
Shortened title:Metal
Publisher:Tanger s.r.o.
ISSN:2694-9296
COBISS.SI-ID:128396547 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:L2-3164
Name:Visokotrdnostna aluminijeva zlitina za selektivno lasersko taljenje in aplikacije z zahtevano nizko težo
Funder:ARRS - Slovenian Research Agency
Project number:P2-0132
Name:Fizika in kemija površin kovinskih materialov

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:EN AW 7075, visoko temperaturna oksidacija, oksidni film, selektivno lasersko pretaljevanje


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