Performance Enhancing of Spray Formed Al/Graphite Alloy Composite by Rolling

  • Surendra Kumar Chourasiya
  • Gaurav GautamEmail author
  • Devendra Singh


The present study outlines the effect of warm rolling on the Al/Graphite alloy composite to investigate its effect on mechanical performance. The Al/Graphite alloy composite has been fabricated by the spray forming process and has been subjected to the rolling at 250 °C with varying reduction. The rolled composite has been studied under different characterization techniques such as X-ray fluorescence (XRF), optical microscopy, scanning electron microscopy with energy dispersive spectroscopy (EDS) and tensile tester. The XRF and EDS results indicate that the Al/Graphite alloy composite is successfully formed. The microscopy results show that the grain size of α-aluminium and agglomeration of the particles refine by rolling and they continuously decrease with an increase in rolling reduction. The strength and percentage elongation of the composite improves by rolling and they continuously increase with an increase in rolling reduction. Further, the fracture surface study has also been performed and it indicates that the fracture of the composite alters from brittle to ductile mode with an increase in rolling reduction. The appeared fracture surface of the composite has also been correlated with the produced microstructure and the tensile properties.

Graphic Abstract


Spray formed composite Rolling Microstructure Ductility Fracture behaviour 



The authors are thankful to the Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee for providing the facility to conduct the present work.


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Copyright information

© The Korean Institute of Metals and Materials 2019

Authors and Affiliations

  • Surendra Kumar Chourasiya
    • 1
  • Gaurav Gautam
    • 1
    Email author
  • Devendra Singh
    • 1
  1. 1.Department of Metallurgical and Materials EngineeringIndian Institute of Technology RoorkeeRoorkeeIndia

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