The wear properties of in-situ 7075 Al-Ti composites produced by powder metallurgy route


Ay H., Ozyurek D., YILDIRIM M., Bostan B.

5th International Advances in Applied Physics and Materials Science Congress and Exhibition, APMAS 2015, Oludeniz, Turkey, 16 - 19 April 2015, vol.1727 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1727
  • Doi Number: 10.1063/1.4945956
  • City: Oludeniz
  • Country: Turkey

Abstract

© 2016 Author(s).In this study, the wear properties of in-situ 7075 Al-Ti composites produced by powder metallurgy route were investigated. Different amount of Ti (2, 4, 6 %) added to gas atomized 7075 Al alloy powders and they were mixed in turbula with 47rpm for 45 minutes. Then the mixed powders were pre-shaped by press under 600 MPa pressure. The samples were cooled in the furnace after sintered at 580 °C for 4 hours in the atmosphere controlled furnace. Standard metallographic process such as grinding, polishing and etching were applied to sintered samples. The hardness values were measured. Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) examines were carried out. The wear tests were performed in a pin-on disc type wear apparatus with 1 ms-1 sliding speed at six different sliding distance (500-3000 m) under 30 N loads. As a result of studies, hardness values were increased with increasing Ti content, in addition the weight losses were decreased with increasing Ti amount.