Effect of magnesium surfactant on wettability of carbon nanotube in A356 alloy composite

H. Hanizam, M. S. Salleh, M. Z. Omar, A. B. Sulong, S. H. Yahaya, N. Siswanto

Research output: Contribution to journalArticle

Abstract

MWCNT-A356 alloy composite is a promising material for automotive applications owing to its excellent casting fluidity, good mechanical properties, high corrosion resistance and low density. However, wettability problem between the reinforced particles and alloy matrix is the major concerns. Poor wetting also caused inhomogeneity dispersion of the particles in the matrix. The present study investigated the effects of additional pure magnesium surfactant into the liquid state processing method on the mechanical properties of the composite. A thixoforming and short T6 heat treatment have also been applied to the composite. The composites were characterized using optical microscopy, field emission secondary electron microscopy and mechanical testing. As results, the weight fraction of 0.5 wt% of Mg, added into the 0.5 wt% MWCNT-A356 alloy composite improves the hardness, yield strength, and ultimate tensile strength by 1.4%, 9.2% and 4.0%, respectively. Some agglomeration of MWCNT was also detected in the 1.0 wt% MWCNT-A356 alloy composite. Evidences of bridging and pull-out structures of MWCNT were clearly observed indicating good wettability and load transfer strengthening mechanism. The results prove that the additional of small weight fraction of magnesium into the alloy matrix has positive impact to the mechanical strength of the composite.

Original languageEnglish
Pages (from-to)33-44
Number of pages12
JournalJournal of Advanced Manufacturing Technology
Volume13
Issue number2
Publication statusPublished - 1 Jan 2019

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Wettability
Magnesium
Surfactant
Nanotubes
Wetting
Carbon nanotubes
Carbon
Surface active agents
Composite
Composite materials
Mechanical Properties
Corrosion Resistance
Mechanical properties
Positive Matrices
Field Emission
Agglomeration
Fluidity
Mechanical testing
Tensile Strength
Electron Microscopy

Keywords

  • Aluminum Alloy Composite
  • Semisolid Metal Processing
  • T6 Heat Treatment
  • Thixoforming
  • Wettability

ASJC Scopus subject areas

  • Software
  • Automotive Engineering
  • Hardware and Architecture
  • Computer Networks and Communications
  • Control and Optimization
  • Industrial and Manufacturing Engineering
  • Management of Technology and Innovation

Cite this

Effect of magnesium surfactant on wettability of carbon nanotube in A356 alloy composite. / Hanizam, H.; Salleh, M. S.; Omar, M. Z.; Sulong, A. B.; Yahaya, S. H.; Siswanto, N.

In: Journal of Advanced Manufacturing Technology, Vol. 13, No. 2, 01.01.2019, p. 33-44.

Research output: Contribution to journalArticle

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