Microstructure and microhardness of AA1050/TiC surface composite fabricated using friction stir processing

A. Thangarasu, N. Murugan, I. Dinaharan, S. J. Vijay

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

Friction stir processing (FSP) has been developed by several researchers to produce an upper surface modification of metallic materials. The fabrication of TiC particulate (~2 μm) reinforced aluminum matrix composite (AMC) using FSP is studied in this paper. The measured content of TiC powders were compacted into a groove of 0.5 mm × 5.5 mm. A single pass FSP was carried out using a tool rotational speed of 1600 rpm, processing speed of 60 mm/min and axial force of 10 kN. A tool made of HCHCr steel, oil hardened to 62 HRC, having a cylindrical profile was used in this study. The microstructure and microhardness of the fabricated AMC were analysed. Scanning Electron Microscope (SEM) micrographs revealed a uniform distribution of TiC particles which were well-bonded to the matrix alloy. The hardness of the AMC increased by 45% higher than that of the matrix alloy.

Original languageEnglish
Pages (from-to)579-586
Number of pages8
JournalSadhana - Academy Proceedings in Engineering Sciences
Volume37
Issue number5
DOIs
Publication statusPublished - Oct 2012
Externally publishedYes

Keywords

  • friction stir processing
  • Surface composite
  • TiC

ASJC Scopus subject areas

  • Multidisciplinary

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