Comparison between mechanical properties and joint performance of AA 2024-T351 aluminum alloy welded by friction stir welding, metal inert gas and tungsten inert gas processes

Milčić, Miodrag (author), Klobčar, Damjan (author), Milčić, Dragan (author), Zdravković, Nataša (author), Ðurić, Aleksija (author), Vuherer, Tomaž (author)

The aim of this work is to study joining Al 2024-T3 alloy plates with different welding procedures. Aluminum alloy AA 2024-T351 is especially used in the aerospace industry. Aluminum plates are welded by the TIG and MIG fusion welding process, as well as by the solid-state welding process, friction stir welding (FSW), which has recently become very important in aluminum and alloy welding. For welding AA2024-T35 with MIG and TIG fusion processes, the filler material ER 4043—AlSi▫$_{5}$▫ was chosen because of reduced cracking. Different methods were used to evaluate the quality of the produced joints, including macro- and microstructure evaluation, in addition to hardness and tensile tests. The ultimate tensile strength (UTS) of the FSW sample was found to be 80% higher than that of MIG and TIG samples. The average hardness value of the weld zone of metal for the MIG- and TIG-produced AA2024-T3511 butt joints showed a significant decrease compared to the hardness of the base metal AA2024-T351 by 50%, while for FSW joints, in the nugget zone, the hardness is about 10% lower relative to the base metal AA2024-T3511.

• Language: English
• Keywords: AA2024-T351, friction stir welding, tungsten inert gas, metal inert gas, mechanical properties, FSW, TIG, MIG
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 16 str.
• Numbering: Vol. 17, issue 13, art. 3336
• PID: 20.500.12556/RUL-183028
• UDC: 621.791:669.715
• ISSN on article: 1996-1944
• DOI: 10.3390/ma17133336
• COBISS.SI-ID: 280076291
• Publication date in RUL: 02.06.2026

Record is a part of a journal

• Title: Materials
• Shortened title: Materials
• Publisher: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

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: AA2024-T351, varjenje s trenjem in mešanjem, varjenje TIG, varjenje MIG, mehanske lastnosti

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: Ministry of Science, Technological Development, and Innovation of the Republic of Serbia
• Project number: 451-03-65/2024-03