Effect of Aluminum Nitride (AlN) addition on wear and mechanical properties of Al-Si alloy composites fabricated by stir casting process

M. N. Wahab, Mariyam Jameelah Ghazali, A. R. Daud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effect of AlN addition in Al-Si alloy composites on the mechanical properties and dry wear behaviour were studied using pre-selected parameter conditions. In this work, high purity of AlN powders with different weight percentage of 5, 7 and 10 were used as reinforced materials for the composites. Morphology of the reinforced composite indicated that both silicon grains and inter-metallic compounds were surrounded by the AlN particles. The presence of AlN in the Al-Si alloy showed a significant improvement in tensile properties in which 7wt% of AlN addition increased up to 25% compared to those of without any reinforcements. Fracture morphologies with small dimples, tear ridges and necking features indicated that ductile fractures had occurred on the Al-Si composites. At 25N load, alloys with 5wt% of AlN exhibited high wear resistances whereas at 70N, alloys with 10wt% of AlN showed a great improvement in wear resistance. SEM investigation also revealed that the presence of wear was also marked with prominent grooves, craters and scoring marks. Overall, alloys with 7wt% AlN addition possessed great improvement in hardness, tensile and wear resistance properties.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages307-312
Number of pages6
Volume462-463
DOIs
Publication statusPublished - 2011
Event8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010 - Kuala Lumpur
Duration: 7 Jun 20109 Jun 2010

Publication series

NameKey Engineering Materials
Volume462-463
ISSN (Print)10139826

Other

Other8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010
CityKuala Lumpur
Period7/6/109/6/10

Fingerprint

Aluminum nitride
Casting
Wear of materials
Mechanical properties
Composite materials
Wear resistance
Metallic compounds
Ductile fracture
aluminum nitride
Silicon
Tensile properties
Powders
Reinforcement
Hardness
Scanning electron microscopy

Keywords

  • Aging treatment
  • Al-Si alloy
  • AlN particles
  • Tensile strength

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Effect of Aluminum Nitride (AlN) addition on wear and mechanical properties of Al-Si alloy composites fabricated by stir casting process. / Wahab, M. N.; Ghazali, Mariyam Jameelah; Daud, A. R.

Key Engineering Materials. Vol. 462-463 2011. p. 307-312 (Key Engineering Materials; Vol. 462-463).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wahab, MN, Ghazali, MJ & Daud, AR 2011, Effect of Aluminum Nitride (AlN) addition on wear and mechanical properties of Al-Si alloy composites fabricated by stir casting process. in Key Engineering Materials. vol. 462-463, Key Engineering Materials, vol. 462-463, pp. 307-312, 8th International Conference on Fracture and Strength of Solids 2010, FEOFS2010, Kuala Lumpur, 7/6/10. https://doi.org/10.4028/www.scientific.net/KEM.462-463.307
Wahab, M. N. ; Ghazali, Mariyam Jameelah ; Daud, A. R. / Effect of Aluminum Nitride (AlN) addition on wear and mechanical properties of Al-Si alloy composites fabricated by stir casting process. Key Engineering Materials. Vol. 462-463 2011. pp. 307-312 (Key Engineering Materials).
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