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Transactions of the Indian Institute of Metals

, Volume 72, Issue 9, pp 2495–2501 | Cite as

Study of B4C/Al–Mg–Si Composites as Highly Hard and Corrosion-Resistant Materials for Industrial Applications

  • Neeraj Kumar
  • Anurag Gautam
  • Ram Sevak SinghEmail author
  • Manoranjan Kumar ManojEmail author
Technical Paper
  • 34 Downloads

Abstract

The development of materials having high mechanical strength and corrosion resistance property is of much interest for applications in automobile, defense and marine industries. This research article investigates the electrochemical and mechanical behaviors of B4C/Al–Mg–Si composites fabricated by using the powder metallurgy method. The fabricated composites which consist of 3.5, 7.0 and 10.5 wt% of B4C reinforcement particles showed a uniform distribution. In order to find the effects of corrosion and mechanical properties of the produced composites, potentiodynamic polarization, electrochemical impedance spectroscopy and Vickers micro-hardness (HV) measurements were carried out. The results revealed that the corrosion resistance decreases with the increasing B4C content, while hardness of the composite increases. Additionally, a technique was employed to improve the corrosion resistance as well as hardness of the composite. The results also demonstrate the mechanisms of the corrosion, high hardness and their improvement in the composites

Keywords

Al matrix composites Corrosion Boron carbide X-ray diffraction 

Notes

Acknowledgements

The authors would like to acknowledge the department of Metallurgical and Materials Engineering and department of Physics, O P Jindal University, Raigarh, India, for the encouragement and research support. The authors also acknowledge Prof (Dr.) Ayush Khare, department of Physics, National Institute of Technology Raipur, India, for their invaluable and laboratory support.

Supplementary material

12666_2019_1717_MOESM1_ESM.docx (2.7 mb)
Supplementary material 1 (DOCX 2736 kb)

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Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  1. 1.Department of Metallurgical EngineeringNational Institute of TechnologyRaipurIndia
  2. 2.Department of Metallurgical and Materials EngineeringO P Jindal UniversityRaigarhIndia
  3. 3.Department of ChemistryO P Jindal UniversityRaigarhIndia
  4. 4.Department of PhysicsO P Jindal UniversityRaigarhIndia

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