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On the Al/Cu Dissimilar Joints Produced Through Simple Cold Compression

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Abstract

Dissimilar Al/Cu joints were produced through simple cold compression technique. The influence of different reductions (40, 53 and 66 %) on the joint strength was studied. Also, the effect of heat treatment on the joints’ mechanical characteristics was investigated using a modified miniature shear test. Microscopical examinations by means of optical and scanning electron microscopes were conducted and results confirmed that acceptable joints produced through 53 and 66 % deformations. According to the shear test results, it was revealed that post-weld heat treatment influenced the joint’s strength and caused strength enhancement in the samples which were not subjected to annealing prior to welding. However, joint strength of annealed specimens substantially decreased by post-annealing. By combining the results of the microscopical and the mechanical examinations, it was concluded that joint strength was associated with both mechanical involvement and metallurgical bonding through formation of the Al–Cu intermetallic layer at the joint interface .

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Acknowledgments

Authors want to thank Prof. A. Karimi Taheri for his scientific consultancy and also wish to thank the research board of Sharif University of Technology for the provision of the research facilities used in this work.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11155-9466, Tehran, Iran

    Mehran Rafie Azad, Amir Ghasemi, Hesam Pouraliakbar & Mohammad Reza Jandaghi

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  1. Mehran Rafie Azad
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  2. Amir Ghasemi
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  3. Hesam Pouraliakbar
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  4. Mohammad Reza Jandaghi
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Correspondence to Amir Ghasemi.

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Azad, M.R., Ghasemi, A., Pouraliakbar, H. et al. On the Al/Cu Dissimilar Joints Produced Through Simple Cold Compression. Trans Indian Inst Met 68, 991–998 (2015). https://doi.org/10.1007/s12666-014-0496-2

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  • DOI: https://doi.org/10.1007/s12666-014-0496-2

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