Effect of artificial aging on the tribological properties of an Al-25Zn-1Mg alloy


TUNAY R. F. , Al Saadi H. I. A.

MATERIALS TESTING, vol.63, no.9, pp.836-841, 2021 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 9
  • Publication Date: 2021
  • Doi Number: 10.1515/mt-2021-0010
  • Title of Journal : MATERIALS TESTING
  • Page Numbers: pp.836-841
  • Keywords: Aging, aluminum based bearing materials, tribological properties, friction, wear, STRENGTH ALUMINUM-ALLOY, WEAR BEHAVIOR, MECHANICAL-PROPERTIES, AL-7075 ALLOY, MICROSTRUCTURE, TENSILE

Abstract

The tribological properties of aluminum based Al-25Zn-1Mg alloy was experimentally investigated in an MSc thesis, and the results are presented in this study. To this purpose, Al-25Zn-1Mg was commercially produced by casting. The prepared samples were divided into seven groups: no-process, solution treatment, and artificial aging for 1, 3, 6, 12 and 24 hours. Aged and untreated samples were subjected to tribological experiments under conditions of dry friction under 5 N and 10 N loads at speed of 200 rpm, 400 rpm and 800 rpm for a distance of 500 m. As a result of the tests, it was found that hardness increases in all samples depending on the aging process. It was also found that when the test speed was kept constant, the coefficient of friction increased with increasing load.