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Effect of Interlayer Thickness on Joint Formation Between Ti-6Al-4V and Mg-AZ31 Alloys

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Abstract

The joining of a Ti-6Al-4V alloy to a Mg-AZ31 alloy was performed using Ni electroplated coatings during the TLP bonding process. In this work, different coating thicknesses were used ranging from 1 to 20 μm. The effect of the coat thickness on microstructural developments and mechanical properties was studied. The bonded specimens were examined by metallographic examination, scanning electron microscopy, and X-ray diffraction analysis. It was observed that as the coat thickness increased from 1 to 12 μm, the joint shear strength increased from 9 to 47 MPa. A further increase in coat thickness had a detrimental effect on the bond strength, and a lower value of 11 MPa was recorded. The mechanism of joint formation includes three stages: solid-state diffusion, eutectic formation, and isothermal solidification.

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Acknowledgments

The authors would like to acknowledge The German Jordanian University (GJU), and NSERC Canada for the financial support for this research.

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Authors and Affiliations

  1. Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada

    Anas M. Atieh & Tahir I. Khan

  2. Qatar Petroleum Chair, Department of Mechanical & Industrial Engineering, University of Qatar, Doha, Qatar

    Tahir I. Khan

Authors
  1. Anas M. Atieh
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  2. Tahir I. Khan
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Correspondence to Anas M. Atieh.

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Atieh, A.M., Khan, T.I. Effect of Interlayer Thickness on Joint Formation Between Ti-6Al-4V and Mg-AZ31 Alloys. J. of Materi Eng and Perform 23, 4042–4054 (2014). https://doi.org/10.1007/s11665-014-1179-1

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  • DOI: https://doi.org/10.1007/s11665-014-1179-1

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