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Microstructure and mechanical properties of 6082-T6 aluminum alloy–zinc coated steel braze-welded joints

  • Ion Mitelea

    Dr. Ion Mitelea (1946) is currently a Professor of Materials Science, Materials and Heat Treatments for Welded Structures and Selection and Use of Engineering Materials at University Politehnica Timisoara, Romania.

    , Corneliu Marius Crăciunescu

    Dr. Corneliu Marius Craciunescu (1960) is a Professor of Materials Science at the Department of Materials and Manufacturing Engineering at University Politehnica Timisoara. His main research area is magnetic shape memory alloys.

    , Ciprian Pavel Lucian

    Ciprian Pavel Lucian (1988) is a PhD student at University Politehnica Timisoara. He performs his research experiments under the coordination of Prof. Mitelea.

    and Ion Dragoş Uţu

    Dr. Ion Dragoş Uţu, born 1978, graduated from University Politehnica Timisoara, Romania, as a Bachelor and PhD, and is currently an Associate Professor in the Material Science and Manufacturing department at University Politehnica Timisoara, Romania.

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From the journal Materials Testing

Abstract

The laser braze-welding technique was aimed to join a low alloyed zinc coated steel used in automotive industry, with a deformable, aging hardenable aluminum alloy from the 6xxx series using as filler material a AlSi12 wire. The heterogeneous joint was obtained by welding of aluminum alloy with the filler wire and by brazing of molten aluminum alloy together with the filler wire on the surface of a zinc coated steel which remained in solid state. The results showed that by using a proper heat input, the zinc coated steel was brazed without a melting process by the aluminum alloy which was in liquid state. On the interface between the zinc coated steel and the welded seam, a thin layer (the thickness was 6 to 8 μm) formed consisting of star (Al-Fe-Si) or needle shape (Mg-Al-Fe-Mn) intermetallic phases.


Ion Dragoş Uţu University Politehnica Timisoara Piata Victoriei No. 2 300006 Timisoara Romania

About the authors

Dr. Ion Mitelea

Dr. Ion Mitelea (1946) is currently a Professor of Materials Science, Materials and Heat Treatments for Welded Structures and Selection and Use of Engineering Materials at University Politehnica Timisoara, Romania.

Dr. Corneliu Marius Crăciunescu

Dr. Corneliu Marius Craciunescu (1960) is a Professor of Materials Science at the Department of Materials and Manufacturing Engineering at University Politehnica Timisoara. His main research area is magnetic shape memory alloys.

Ciprian Pavel Lucian

Ciprian Pavel Lucian (1988) is a PhD student at University Politehnica Timisoara. He performs his research experiments under the coordination of Prof. Mitelea.

Dr. Ion Dragoş Uţu

Dr. Ion Dragoş Uţu, born 1978, graduated from University Politehnica Timisoara, Romania, as a Bachelor and PhD, and is currently an Associate Professor in the Material Science and Manufacturing department at University Politehnica Timisoara, Romania.

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Published Online: 2021-08-18
Published in Print: 2021-08-31

© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany

Downloaded on 19.3.2024 from https://www.degruyter.com/document/doi/10.1515/mt-2020-0117/html
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