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Sintering Response of Aluminum 6061-TiB2 Composite: Effect of Prealloyed and Premixed Matrix

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Abstract

In the present study, Al6061-based alloy and composites were produced using powder metallurgy route. Two different kinds of base powders (prealloyed and premixed 6061Al alloy) were mixed with TiB2 particles in compositions ranging from 0 to 15 vol.%, respectively. The processed powders were compacted at 300 MPa and sintered at 620 °C under N2 atmosphere. The microstructural evolution of prealloyed and premixed 6061Al alloy, at different stages of sintering cycle, was studied using scanning electron microscope and EDS analysis. A comparative study was done between prealloyed- and premixed-based composites on the basis of densification, microstructure, hardness, transverse rupture strength and electrical conductivity as a function of TiB2 content. Results indicated that premixed-based composites have better mechanical properties than prealloyed-based composites.

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Acknowledgments

The authors wish to acknowledge Dr. O.P. Modi, Head, Materials Characterization division (CSIR-AMPRI Bhopal) for his support.

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Authors and Affiliations

  1. Department of Material Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India

    Mahesh Paidpilli & Anish Upadhyaya

  2. Materials Science and Engineering Department, CSIR-AMPRI, Bhopal, MP, 462024, India

    Gaurav Kumar Gupta

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  1. Mahesh Paidpilli
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Correspondence to Mahesh Paidpilli.

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Paidpilli, M., Gupta, G.K. & Upadhyaya, A. Sintering Response of Aluminum 6061-TiB2 Composite: Effect of Prealloyed and Premixed Matrix. J. of Materi Eng and Perform 26, 4470–4480 (2017). https://doi.org/10.1007/s11665-017-2883-4

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  • DOI: https://doi.org/10.1007/s11665-017-2883-4

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