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Effect of Processing Temperature on the Synthesis of In Situ AlSi5Cu3/TiB2 Composites Cast in Metal Mold: Structural and Mechanical Characterizations

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Abstract

In the present study, the effect of processing temperature on the characteristics of in situ AlSi5Cu3/TiB2 composites is investigated. The AlSi5Cu3/TiB2 composites were synthesized (using K2TiF6 and KBF4) at three different processing temperatures (750, 800, and 850°C) with constant processing time (60 minutes) and cast into the metal mold. The XRD analysis, microscopic examination, and EDS analysis revealed that only TiB2 particles were present in 800°C processed composites without any intermetallics, whereas, the presence of Al3Ti intermetallics along with TiB2 particles was observed in 750 and 850°C processed composites. In 800°C processed composites, significant grain refinement was occurring owing to the presence of more TiB2 particles acting as nuclei as compared to 750 and 850°C processed composites. Due to the presence of more TiB2 particles and the absence of Al3Ti intermetallics, hardness, tensile strength, compressive strength, impact strength, and flexural strength of 800°C processed composites were improved compared to 750 and 850°C processed composites. Considering microstructural characteristics and mechanical behavior, it was observed that in situ AlSi5Cu3/TiB2 composites were effectively developed at 800°C processing temperature.

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Acknowledgment

The authors gratefully acknowledge the support from the Department of Science and Technology (DST), New Delhi, India sponsored SMART Foundry project (DST/TSG/AMT/2015/332 dated 17/08/2016). The authors acknowledge Charotar University of Science and Technology (CHARUSAT) for providing technical support and facilities. The authors are grateful to the editor-in-chief for assigning competitive reviewers to evaluate the manuscript. Moreover, the authors acknowledge the anonymous reviewers for providing comments and suggestions to improve the quality of the manuscript.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Chandubhai S Patel Institute of Technology, Charotar University of Science and Technology (CHARUSAT), Changa, Gujarat, 388421, India

    R. P. Barot & M. P. Sutaria

  2. Department of Physical Sciences, P D Patel Institute of Applied Science, Charotar University of Science and Technology (CHARUSAT), Changa, Gujarat, 388421, India

    R. P. Desai

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RPB contributed to conceptualization, methodology, experimentation, investigation, data curation, original draft preparation. RPD contributed to conceptualization, analysis, review, editing, supervision. MPS contributed to conceptualization, overall review, editing, supervision.

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Correspondence to M. P. Sutaria.

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Barot, R.P., Desai, R.P. & Sutaria, M.P. Effect of Processing Temperature on the Synthesis of In Situ AlSi5Cu3/TiB2 Composites Cast in Metal Mold: Structural and Mechanical Characterizations. Inter Metalcast 18, 915–932 (2024). https://doi.org/10.1007/s40962-023-01067-w

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