Centrifugal Casting of Nano Crystalline TiB2 Reinforcement Particulate Reinforcement in Al-Alloy Matrix

Authors

  • N. Eswara Prasad Regional Centre for Military Airworthiness (Materials), CEMILAC, PO Kanchanbagh, Hyderabad, India
  • V. M. Nimbalkar Naval Materials Research Laboratory, DRDO, Ambernath, India
  • B. R. K. Rao Naval Materials Research Laboratory, DRDO, Ambernath, India
  • V. P. Deshmukh Naval Materials Research Laboratory, DRDO, Ambernath, India
  • K. V. Marathe Naval Materials Research Laboratory, DRDO, Ambernath, India

Keywords:

nano size TiB2, centrifugal casting, aluminium matrix, clustering

Abstract

A method of producing Nano size TiB2 particles within an aluminium matrix is the in situ reaction synthesis method, using KBF4 and K2TiF6 potassium based bearing fluxes. The advantages of this in situ reactive process are a small particle size and good particle/matrix interfacial bonding. However, this method is limited to producing low particulate volume percentage material (˂6 vol%). To overcome this limitation, centrifugal casting has been investigated. A series of the casts was made to observe the influence of centrifugal acceleration “G” value on final TiB2 distribution. This was done by the casting at 1400 RPM rotational speed and 570 G value. The TiB2 particulates content was concentrated towards the outer radius with a clear interface between this region and the remaining unreinforced Aluminium matrix. The final concentration of the TiB2 particles increased with increase in rotational speed and particle clustering was found to influence the settling behavior of the TiB2 particles. The present paper demonstrates that centrifugal casting may be employed to yield a 6 Vol% of TiB2 reinforced particulate metal matrix composites.

Downloads

Published

2019-04-16

Issue

Vol. 3 No. 3 (2013)

Section

Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.