Tribology at high-velocity impact

Karamis M. B.

TRIBOLOGY INTERNATIONAL, vol.40, no.1, pp.98-104, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 1
  • Publication Date: 2007
  • Doi Number: 10.1016/j.triboint.2006.02.063
  • Page Numbers: pp.98-104


The tribological events taking place when a high-velocity projectile hits a SiC particulate reinforced AA 5083 composite material was examined under real conditions. The samples were cast in a disc shape by squeeze casting method. Different volume fractions of SiC particles were used. They were solidified under 180 MPa in a steel mould with a 650-700 degrees C temperature range. SiC particles with the size of 250-500 mu m, and 30% and 45% in volume fraction were incorporated into the matrix material. The composites were machined to ensure a smooth surface and to obtain samples without burrs. The samples had a diameter and thickness of 140 and 20 mm, respectively. The terminal ballistic tests were carried out in an army zone under standard test conditions. An AP 7.62 mm armour piercing projectile with a speed of 710m/s was used for testing the composite.