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Investigation of graphene-reinforced magnesium metal matrix composites processed through a solvent-based powder metallurgy route

  • V KavimaniEmail author
  • K Soorya Prakash
  • Titus Thankachan
Article
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Abstract

In the present investigation, AZ31 alloy is homogeneously reinforced with 0.2, 0.3, 0.4 and 0.5 wt% of reduced graphene oxide (r-GO) nanosheets for the first time through a series of methodologies involving solvent processing, mechanical alloying, cold pressing and finally sintering under argon atmosphere at \(560^{\circ }\hbox {C}\). Scanning Electron Microscopy (SEM) assisted with energy-dispersive X-ray analysis revealed that this inventive fabrication route is useful to easily disperse r-GO into the matrix material and thereby attain methodical homogeneity with a uniform particle size. The attained results show that amongst the others, addition of 0.4 wt% r-GO have obviously improved the hardness up to 64.6 HV and also yielded a better inhibition efficiency of 84% on corrosion. Any further increase of r-GO content resulted for significant decrease in the wear rate up to the level of \(2.6~\hbox {mm}^{3}\hbox { Nm}^{-1}\).

Keywords

Metal matrix composites (MMCs) reinforcement synthesis solvent-based powder metallurgy (PM) material characterization 

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • V Kavimani
    • 1
    Email author
  • K Soorya Prakash
    • 1
  • Titus Thankachan
    • 2
  1. 1.Department of Mechanical EngineeringAnna University Regional CampusCoimbatoreIndia
  2. 2.Department of Mechanical EngineeringKarunya Institute of Technology and SciencesCoimbatoreIndia

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