• Effect of height to diameter ($h/d$) ratio on the deformation behaviour of Fe–Al$_2$O$_3$ metal matrix nanocomposites

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/039/05/1245-1258

    • Keywords

       

      Metal matrix nanocomposites (MMNCs); scanning electron microscopy (SEM); density; hardness; deformation.

    • Abstract

       

      The present paper reports the effect of height to diameter ($h/d$) ratio on the deformation behaviour of Fe–Al$_2$O$_3$ metal matrix nanocomposites (MMNCs) during bulk processing. Sintered compacts were machined to the required size with different $h/d$ ratios. Test specimens were subjected to deformation at room temperature under three different interfacial friction conditions such as dry, solid and liquid lubrications. Deformed specimensshow a significant improvement in the density and hardness. Results also revealed the formation of a nanosize iron aluminate phase due to reactive sintering, which in turn contributes to grain refinement. Experimental density of the specimens was also verified with the theoretical density using the standard equations. It is expected that the present work will be useful in designing and developing MMNC products with better quality at competitive cost.

    • Author Affiliations

       

      PALLAV GUPTA1 DEVENDRA KUMAR2 A K JHA3 OM PARKASH2

      1. Department of Mechanical and Automation Engineering, A.S.E.T., Amity University, Noida 201313, Uttar Pradesh, India
      2. Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
      3. Department of Mechanical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
    • Dates

       

© 2017-2019 Indian Academy of Sciences, Bengaluru.