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Microstructure, Mechanical Behavior and Tensile Fractography of 90-Micron-Sized Titanium Carbide Particles Reinforced Al2219 Alloy Die Cast Metal Composites

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Abstract

In the current investigations, the microstructure, mechanical properties and tensile fractography of Al2219 alloy with 2 and 4 wt.% of 90-micron-sized titanium carbide (TiC) particles reinforced composites were developed. The composites containing 2 and 4 wt.% of TiC particles in the Al2219 alloy were created by melt stir technique. During the preparation of composites, TiC particles were preheated to a temperature of 400 °C, and these preheated particles were dispersed into the Al2219 alloy matrix in two steps to improve the wettability between Al matrix TiC particles. Microstructural examinations on the specimens were carried out by SEM, EDS and XRD. Mechanical properties of 2 to 4 wt.% of micro-TiC particles reinforced Al alloy composites were evaluated as per ASTM standards. Microstructural studies by SEM and EDS confirmed the dissemination and the presence of micro-TiC particles in the Al2219 alloy matrix. The presence of TiC phase in Al matrix was confirmed by the XRD patterns. The hardness, ultimate yield and compression strength of Al2219 alloy enhanced with the incorporation of 2 and 4 wt.% of micro-TiC particles. Further, ductility of Al2219 alloy decreased with the presence of TiC particles. The prepared Al2219 alloy with TiC particles composites was studied for tensile failure analysis using SEM microphotographs to reveal the several mechanisms involved in the tensile fracture.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Sri Siddhartha Institute of Technology, Tumkur, 572015, India

    Jayasheel I. Harti & T. B. Prasad

  2. East Point College of Engineering and Technology, Bangalore, Karnataka, 560049, India

    Jayasheel I. Harti & T. B. Prasad

  3. Aircraft Research and Design Centre, HAL, Bangalore, Karnataka, 560037, India

    Madeva Nagaral

  4. Department of Mechanical Engineering, Sharnbasva University, Kalaburagi, Karnataka, 585103, India

    Pankaj Jadhav

  5. Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka, 572103, India

    V. Auradi

  6. Department of Mechanical Engineering, New Horizon College of Engineering, Bangalore, Karnataka, 560103, India

    S. Shiva Prakash

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  1. Jayasheel I. Harti
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  2. T. B. Prasad
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Correspondence to Madeva Nagaral.

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Harti, J.I., Prasad, T.B., Nagaral, M. et al. Microstructure, Mechanical Behavior and Tensile Fractography of 90-Micron-Sized Titanium Carbide Particles Reinforced Al2219 Alloy Die Cast Metal Composites. J Fail. Anal. and Preven. 21, 631–639 (2021). https://doi.org/10.1007/s11668-020-01107-1

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  • DOI: https://doi.org/10.1007/s11668-020-01107-1

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