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Mechanical and microstructural characterization of AA7178-TiB2 composites

  • Vinayagam Mohanavel
Published/Copyright: January 27, 2020
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Materials Testing
From the journal Materials Testing Volume 62 Issue 2

Abstract

In the present investigation, an aluminum alloy AA7178 was reinforced with three different weight fractions (3, 6 and 9 wt.-%) of titanium diboride (TiB2) particles which were efficaciously synthesized through exothermic reaction of halide salts such as potassium hexafluoro-titanate (K2TiF6) and potassium tetrafluoro-borate (KBF4), with molten aluminum melt to bring out unique properties. In-situ reaction between the halide salts, e. g., K2TiF6 and KBF4 in molten aluminum leads to the formation of TiB2 particles. The synthesized final composites were characterized using X-ray diffraction (XRD) and a scanning electron microscope (SEM). The SEM micrographs indicated the even dispersion of the TiB2 filler particle in the composites. Tensile strength, compression strength and micro-hardness of the prepared composites is measured and compared to plain matrix alloy. The manufactured composites are mechanically characterized as per the American Society for Testing and Materials (ASTM) standards, employing a computerized universal testing machine. The mechanical properties of the composite were discovered to be obviously superior to those of the basic matrix alloy owing to augmented particle content.

* Correspondence Address, Assist. Prof. Dr. Vinayagam Mohanavel, Department of Mechanical Engineering, Chennai Institute of Technology, Chennai, 600069, Tamil Nadu, India. E-mail:

Assist. Prof. Dr. Vinayagam Mohanavel, BEng, MTech, PhD, born 1988, is presently working as Assistant Professor in the Mechanical Engineering Department of Chennai Institute of Technology, Chennai, Tamil Nadu, India. He obtained his BEng degree in Mechanical Engineering from Anna University Affiliated Engineering College, MTech degree in Design Engineering from MGR University and his PhD degree from St. Peter's Institute of Higher Education and Research, Chennai, Tamilnadu, India.

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Published Online: 2020-01-27
Published in Print: 2020-02-03

© 2020, Carl Hanser Verlag, München

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Metallurgical Evaluation and Failure Analysis of Cracking in Wheel Rim SPFH590 Steel
  5. Fatigue behavior of two notched cutting tool materials – high speed steel and cemented carbide
  6. Early corrosion stage of welded carbon steel joints in CO2-saturated oilfield water
  7. Effect of quenching and tempering temperature on the tensile properties of low alloyed boron steel
  8. Mechanical and microstructural characterization of AA7178-TiB2 composites
  9. Deformation calibration mode based on the potential drop technique and strain gage measurements
  10. Process parameter optimization for the magnetic abrasive finishing of SS310s steel
  11. Structure and properties of a boronized crankshaft coating
  12. Microstructure and properties of fiber laser welded high strength steel butt joints
  13. Reusability of metallurgical slag waste in submerged arc welding powder for hardfacing
  14. Microstructure and thermal properties of Bi-Sn eutectic alloy
  15. Dry-sliding wear behavior of AISI 4140 barrel steel at elevated temperatures
  16. Process parameters, development and applications of stir cast composite: A review
  17. An algebraic-analytic model for the characterization of the frequency domain of photodiodes
  18. BEZUGSQUELLEN
  19. Materials Testing
https://doi.org/10.3139/120.111465

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Metallurgical Evaluation and Failure Analysis of Cracking in Wheel Rim SPFH590 Steel
  5. Fatigue behavior of two notched cutting tool materials – high speed steel and cemented carbide
  6. Early corrosion stage of welded carbon steel joints in CO2-saturated oilfield water
  7. Effect of quenching and tempering temperature on the tensile properties of low alloyed boron steel
  8. Mechanical and microstructural characterization of AA7178-TiB2 composites
  9. Deformation calibration mode based on the potential drop technique and strain gage measurements
  10. Process parameter optimization for the magnetic abrasive finishing of SS310s steel
  11. Structure and properties of a boronized crankshaft coating
  12. Microstructure and properties of fiber laser welded high strength steel butt joints
  13. Reusability of metallurgical slag waste in submerged arc welding powder for hardfacing
  14. Microstructure and thermal properties of Bi-Sn eutectic alloy
  15. Dry-sliding wear behavior of AISI 4140 barrel steel at elevated temperatures
  16. Process parameters, development and applications of stir cast composite: A review
  17. An algebraic-analytic model for the characterization of the frequency domain of photodiodes
  18. BEZUGSQUELLEN
  19. Materials Testing
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