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Effect of Post-Weld Aging on The Corrosion Resistance and Mechanical Properties of Friction Stir Welded Aluminum Alloy 7475-T73

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Friction Stir Welding and Processing VII

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Abstract

The main objective of this work is to investigate the effect of post-weld artificial aging (PWAA) on the corrosion resistance and mechanical properties of friction stir welded Al 7475-T73 alloy. Friction stir welding (FSW) was performed on 0.22-in thick plates with varying heat inputs. The PWAA treatment performed was a stabilization treatment at 225° F for 24 hours, followed by aging at 325° F for 4 hours. Electrochemical and alternate immersion corrosion testing was performed to evaluate the effect of PWAA on the corrosion performance. Electrical conductivity measurements along with the tensile properties were evaluated as a function of weld heat input. Both corrosion resistance and mechanical properties of the PWAA specimens were comparable with the parent Al 7475-T73 material.

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Authors and Affiliations

  1. Arbegast Materials Processing and Joining Laboratory, South Dakota School of Mines and Technology, 501 E. St. Joseph St., Rapid City, SD, 57701, USA

    Bharat K. Jasthi, Erik Klinckman, Todd Curtis, Christian Widener & Michael West

  2. Center for Advanced Technologies, 1400 Oakman Blvd, Detroit, MI, 48238, USA

    Robert B. Ruokolainen & Ashish Dasgupta

Authors
  1. Bharat K. Jasthi
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  2. Erik Klinckman
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  3. Todd Curtis
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  4. Christian Widener
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  5. Michael West
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  6. Robert B. Ruokolainen
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  7. Ashish Dasgupta
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Editor information

Editors and Affiliations

  1. Department of Materials Science and Engineering, University of North Texas, USA

    Rajiv Mishra Ph.D. (Professor, UNT Site Director, Fellow) (Professor, UNT Site Director, Fellow)

  2. Structural Metals Department, Rockwell Scientific, USA

    Murray W. Mahoney B.S., M.S. (Prior, Manager/Senior Scientist) (Prior, Manager/Senior Scientist)

  3. Department of Materials Processing, Tohoku University, Japan

    Yutaka Sato Ph.D. (Associate Professor) (Associate Professor)

  4. Pacific Northwest National Laboratory, USA

    Yuri Hovanski B.S., M.S. (Research Engineer) (Research Engineer)

  5. Manufacturing Systems Research Laboratory, General Motors Global Research and Development Center, Warren, Michigan, USA

    Ravi Verma Ph.D. (Staff Researcher) (Staff Researcher)

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© 2013 TMS (The Minerals, Metals & Materials Society)

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Jasthi, B.K. et al. (2013). Effect of Post-Weld Aging on The Corrosion Resistance and Mechanical Properties of Friction Stir Welded Aluminum Alloy 7475-T73. In: Mishra, R., Mahoney, M.W., Sato, Y., Hovanski, Y., Verma, R. (eds) Friction Stir Welding and Processing VII. Springer, Cham. https://doi.org/10.1007/978-3-319-48108-1_23

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