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A comparative study on friction stir and TIG welding of dissimilar AA6061–AA7075 aluminium alloys.

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Title: A comparative study on friction stir and TIG welding of dissimilar AA6061–AA7075 aluminium alloys.
Authors: Ramesh, M.1 (AUTHOR) ramesh.mari@srec.ac.in, Suresh, T.2 (AUTHOR) sureshmc@gmail.com, Dhanesh, G.1 (AUTHOR) dhanesh.2304017@srec.ac.in, Prasanth, D. Dev1 (AUTHOR) devprasath.2404017@srec.ac.in, Irfan, M. Mohamed1 (AUTHOR) mohamedirfan.2404038@srec.ac.in, Sampath, Hari Vardhan1 (AUTHOR) harivardhansampath.2404024@srec.ac.in
Source: Interactions (30050731). 3/17/2026, Vol. 247 Issue 1, p1-13. 13p.
Subjects: Friction stir welding, Gas tungsten arc welding, Tensile strength, Fracture mechanics, Microhardness, Aluminum alloys, Microstructure
Abstract: This study offers a comparative investigation of the friction stir welding (FSW) and tungsten inert gas (TIG) welding processes of dissimilar AA6061 and AA7075 aluminum alloys. In the FSW process, the welding parameters adopted were a rotation speed of 1000 rpm and a traverse speed of 60 mm/min. In the TIG welding process, a welding current of 140 A was used. From the microstructural studies, equiaxed dynamically recrystallized grains have been observed in the FSW joint, while the TIG welded joint has shown dendritic microstructures and segregation in the fusion zone. In the FSW joint, the maximum tensile strength of 268 MPa has been achieved, which is 29% greater than the tensile strength of the TIG welded joint. From the microhardness profile, a maximum hardness of 122 HV has been achieved in the FSW joint compared to TIG welded joint. From the fracture studies, it has been revealed that the FSW joint has shown ductile fracture with uniform dimples, while the TIG welded joint has shown a mixed-mode fracture. This study has demonstrated the better mechanical and microstructural stability of the FSW joint compared to the conventional TIG welding process. [ABSTRACT FROM AUTHOR]
Copyright of Interactions (30050731) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 192417591
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  Data: A comparative study on friction stir and TIG welding of dissimilar AA6061–AA7075 aluminium alloys.
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  Data: <searchLink fieldCode="AR" term="%22Ramesh%2C+M%2E%22">Ramesh, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ramesh.mari@srec.ac.in</i><br /><searchLink fieldCode="AR" term="%22Suresh%2C+T%2E%22">Suresh, T.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> sureshmc@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Dhanesh%2C+G%2E%22">Dhanesh, G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dhanesh.2304017@srec.ac.in</i><br /><searchLink fieldCode="AR" term="%22Prasanth%2C+D%2E+Dev%22">Prasanth, D. Dev</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> devprasath.2404017@srec.ac.in</i><br /><searchLink fieldCode="AR" term="%22Irfan%2C+M%2E+Mohamed%22">Irfan, M. Mohamed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mohamedirfan.2404038@srec.ac.in</i><br /><searchLink fieldCode="AR" term="%22Sampath%2C+Hari+Vardhan%22">Sampath, Hari Vardhan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> harivardhansampath.2404024@srec.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22Interactions+%2830050731%29%22">Interactions (30050731)</searchLink>. 3/17/2026, Vol. 247 Issue 1, p1-13. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Friction+stir+welding%22">Friction stir welding</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+tungsten+arc+welding%22">Gas tungsten arc welding</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+mechanics%22">Fracture mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Microhardness%22">Microhardness</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+alloys%22">Aluminum alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study offers a comparative investigation of the friction stir welding (FSW) and tungsten inert gas (TIG) welding processes of dissimilar AA6061 and AA7075 aluminum alloys. In the FSW process, the welding parameters adopted were a rotation speed of 1000 rpm and a traverse speed of 60 mm/min. In the TIG welding process, a welding current of 140 A was used. From the microstructural studies, equiaxed dynamically recrystallized grains have been observed in the FSW joint, while the TIG welded joint has shown dendritic microstructures and segregation in the fusion zone. In the FSW joint, the maximum tensile strength of 268 MPa has been achieved, which is 29% greater than the tensile strength of the TIG welded joint. From the microhardness profile, a maximum hardness of 122 HV has been achieved in the FSW joint compared to TIG welded joint. From the fracture studies, it has been revealed that the FSW joint has shown ductile fracture with uniform dimples, while the TIG welded joint has shown a mixed-mode fracture. This study has demonstrated the better mechanical and microstructural stability of the FSW joint compared to the conventional TIG welding process. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Interactions (30050731) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10751-026-02411-2
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        Text: English
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        PageCount: 13
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      – SubjectFull: Friction stir welding
        Type: general
      – SubjectFull: Gas tungsten arc welding
        Type: general
      – SubjectFull: Tensile strength
        Type: general
      – SubjectFull: Fracture mechanics
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      – SubjectFull: Microhardness
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      – SubjectFull: Aluminum alloys
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      – SubjectFull: Microstructure
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      – TitleFull: A comparative study on friction stir and TIG welding of dissimilar AA6061–AA7075 aluminium alloys.
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              Text: 3/17/2026
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