Effect of Oil Flow Rate, Contact Pressure and Sliding Speed on the Wear Properties of Zn-15Al-3Cu Alloy


HEKİMOĞLU A. P. , SAVAŞKAN T.

1. Uluslararası Teknoloji Bilimleri ve Tasarım sempozyumu(ITESDES), Giresun, Turkey, 27 - 29 June 2018, pp.899-910

  • Publication Type: Conference Paper / Full Text
  • City: Giresun
  • Country: Turkey
  • Page Numbers: pp.899-910

Abstract

Wear properties of Zn-15Al-3Cu alloy were investigated at a range of oil flow rate (0.5-3cm3), contact pressure (1–5 MPa), and sliding speed (0.5–2.5 ms-1) for a sliding distance of 30,000 m using a block-on-disk type test machine. It was observed that the friction coefficient, working temperature and wear volume of the alloy decreased with oil flow rate. As the contact pressure increased, the friction coefficient of the alloy decreased, but its working temperature and wear volume increased. Sliding speed had no significant effect on the friction coefficient and wear volume of the alloy, but caused an increase in the working temperature. Wear surfaces of the alloy samples were examined using scanning electron microscopy (SEM). The area of the smeared surface layer increased with contact pressure, but decreased with oil flow rate. The results obtained from the wear tests are discussed in terms of microstructure and mechanical properties of the experimental alloy.