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Development of an eutectic-based self-healing in Al–Si cast alloy

  • Volkan Kilicli ORCID logo EMAIL logo
Published/Copyright: March 16, 2022
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Materials Testing
From the journal Materials Testing Volume 64 Issue 3

Abstract

In this study, a self-healing mechanism was developed by means of melting the eutectic structure for microcrack repair in a hypoeutectic Al–Si cast alloy. The alloy was heated just above the eutectic temperature to provide melting of the eutectic in this mechanism. The melted eutectic Si particles repair the microcrack under appropriate conditions. The microcrack formation was provided by tensile loading in Al–Si alloy tensile bars and then eutectic-based self-healing treatment was performed to ensure microcrack healing. Microcrack healing was monitored by X-ray radiography and microstructural examinations were carried out by scanning electron microscopy. The mechanical properties were investigated by tensile testing before and after the healing treatment. Eutectic-based self-healing treatment provides the healing of some microcracks in the microstructure of hypoeutectic Al–Si cast alloy. Also, 44% of yield strength, 59% of ultimate tensile strength, and 86% of total elongation have been recovered by the eutectic-based self-healing process in Al–Si alloy.

Keywords: A356 alloy; Al–Si cast alloy; microcrack healing; self-healing materials; self-healing metals
Corresponding author: Volkan Kilicli, Department of Metallurgical and Materials Engineering, Faculty of Technology, Gazi University, Ankara, Turkey, Email:

Acknowledgement

The author thanks Professor Pradeep Rohatgi for his support and his invaluable contributions. The author also thanks Dr. Ajay Kumar for helping in the experimental study. The author is thankful to the Center for Composite Materials and Center for Advanced Materials Manufacturing at the University of Wisconsin-Milwaukee for providing resources for the experimental works in this study. The author is also grateful to Dr. David Weiss from ECK Industries, WI, USA for supplying the A356-T6 alloy tensile bars.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The author was supported by TÜBİTAK (The Scientific and Technological Research Council of Turkey). The author was supported by the BİDEB-2219 postdoctoral research scholarship program.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2022-03-16
Published in Print: 2022-03-28

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Effect of water absorption and hydroxyapatite addition on mechanical and microstructural properties of dental luting cements
  3. Mechanical properties and corrosion behavior of a friction stir processed magnesium alloy composite AZ31B–SiC
  4. Multi-objective optimization of build orientation considering support structure volume and build time in laser powder bed fusion
  5. Fatigue properties and crack growth behavior of 7N01 and 6N01 aluminum alloys
  6. Surface roughness prediction of wire electric discharge machining (WEDM)-machined AZ91D magnesium alloy using multilayer perceptron, ensemble neural network, and evolving product-unit neural network
  7. Effect of FeTi-FeB inoculation on the shape of carbide reinforcements in hypoeutectic high chromium white cast iron
  8. Development of an eutectic-based self-healing in Al–Si cast alloy
  9. Effect of process parameters on mechanical properties of additive manufactured SMP structures based on FDM
  10. Effect of calcination and sintering temperature on porosity and microstructure of porcelain tiles
  11. Effect of particles on tensile and bending properties of jute epoxy composites
  12. Effect of cutting parameters on the machinability of X37CrMoV5-1 hot work tool steel
  13. Cutting forces during drilling of a SiCp reinforced Al-7075 matrix composite
  14. Modeling and simulation of tensile properties of r-LDPE/GSF composite using the response surface methododology
  15. Machinability of alloy ductile iron and forged 16MnCr5 steel
https://doi.org/10.1515/mt-2021-2045
Keywords for this article
A356 alloy; Al–Si cast alloy; microcrack healing; self-healing materials; self-healing metals

Articles in the same Issue

  1. Frontmatter
  2. Effect of water absorption and hydroxyapatite addition on mechanical and microstructural properties of dental luting cements
  3. Mechanical properties and corrosion behavior of a friction stir processed magnesium alloy composite AZ31B–SiC
  4. Multi-objective optimization of build orientation considering support structure volume and build time in laser powder bed fusion
  5. Fatigue properties and crack growth behavior of 7N01 and 6N01 aluminum alloys
  6. Surface roughness prediction of wire electric discharge machining (WEDM)-machined AZ91D magnesium alloy using multilayer perceptron, ensemble neural network, and evolving product-unit neural network
  7. Effect of FeTi-FeB inoculation on the shape of carbide reinforcements in hypoeutectic high chromium white cast iron
  8. Development of an eutectic-based self-healing in Al–Si cast alloy
  9. Effect of process parameters on mechanical properties of additive manufactured SMP structures based on FDM
  10. Effect of calcination and sintering temperature on porosity and microstructure of porcelain tiles
  11. Effect of particles on tensile and bending properties of jute epoxy composites
  12. Effect of cutting parameters on the machinability of X37CrMoV5-1 hot work tool steel
  13. Cutting forces during drilling of a SiCp reinforced Al-7075 matrix composite
  14. Modeling and simulation of tensile properties of r-LDPE/GSF composite using the response surface methododology
  15. Machinability of alloy ductile iron and forged 16MnCr5 steel
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