Production and characterization of rich husk ash particulate reinforced AA6061 aluminum alloy composites by compocasting

J. Allwyn Kingsly Gladston, N. Mohamed Sheriff, I. Dinaharan, J. David Raja Selvam

Research output: Contribution to journalArticlepeer-review

86 Citations (Scopus)

Abstract

Abstract Rice husk ash (RHA) is a potential particulate reinforcement to produce aluminum matrix composites (AMCs) economically. Compocasting method was applied to produce aluminum alloy AA6061 reinforced with various amounts (0, 2%, 4%, 6% and 8%, mass fraction) of RHA particles. The prepared composites were characterized using X-ray diffraction and scanning electron microscopy. X-ray diffraction patterns of AA6061/RHA AMCs revealed the presence of RHA particles without the formation of any other intermetallic compounds. The scanning electron micrographs showed a homogeneous distribution of RHA particles all over the aluminum matrix. Intragranular distribution of RHA particles was observed. Further, RHA particles were bonded well with the aluminum matrix and a clear interface existed. The reinforcement of RHA particles enhanced the microhardness and ultimate tensile strength (UTS) of the AMCs. The tensile behavior is correlated to the microstructure of the AMCs.

Original languageEnglish
Article number63653
Pages (from-to)683-691
Number of pages9
JournalTransactions of Nonferrous Metals Society of China
Volume25
Issue number3
DOIs
Publication statusPublished - 1 Mar 2015

Keywords

  • 6061 Al alloy
  • aluminum matrix composite
  • compocasting
  • microstructure
  • rice husk ash

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Geotechnical Engineering and Engineering Geology
  • Metals and Alloys
  • Materials Chemistry

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