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Experimental Research on Submerged Underwater Friction Stir Processing of EN AW 1200 Aluminum Alloy

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Abstract:

Submerged friction stir processing is a variant of processing metallic materials that is based on the principle of FSW welding and which considers the local modification of the mechanical properties and the microstructure of the material to be processed. By carrying out the underwater SFSP processing, the thermal overload of the material to be processed and that of the processing tool is reduced, thus contributing to the reduction of the dimensions of the heat affected zone and of the deformations of the processed material, as well as to a greater durability of the tool. The paper presents results obtained by ISIM Timisoara regarding the submerged friction stir processing (SFSP) of the EN AW 1200 aluminum alloy with a thickness of 5 mm. The SFSP processing was done in multiple passes using a steel processing tool, with a conical pin with four flat chamfers and different processing parameters. The positive preliminary results are useful for complex experimental research on SFSP processing of aluminum alloys, which will be carried out within the ongoing Nucleu project PN 23 37 01 02.

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Periodical:

Materials Science Forum (Volume 1161)

Pages:

35-44

DOI:

https://doi.org/10.4028/p-tU6YjK

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Online since:

October 2025

Authors:

Lia Nicoleta Botila*, Ion Aurel Perianu, Iuliana Duma, Emilia Dobrin, Radu Nicolae Popescu, Raluca Faur

Keywords:

EN AW 1200 Aluminum Alloy, Experiments, Submerged Friction Stir Processing

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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