The Effect of Aging and Sliding Speed on Wear Behaviour of Cu-Cr-Zr Alloy


ÖZYÜREK D. , Ciftci I., Tuncay T.

MATERIALS TESTING, cilt.55, ss.468-471, 2013 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 55 Konu: 6
  • Basım Tarihi: 2013
  • Doi Numarası: 10.3139/120.110457
  • Dergi Adı: MATERIALS TESTING
  • Sayfa Sayısı: ss.468-471

Özet

In this study, the sliding wear behaviour of non-aged and aged Cu-Cr-Zr alloy specimens were investigated. The specimens were aged for 2 h at the temperatures of 450 degrees C and 475 degrees C. Prior to the wear tests, microstructural examinations and hardness measurements were performed on all Cu-Cr-Zr alloy specimens. The wear tests were performed on a pin-on disk type wear apparatus at the sliding speeds of 0.5 ms(-1), 1.0 ms(-1) and 1.5 ms(-1) as well as under 40 N applied load. After the wear tests, the worn surfaces of all samples were analyzed by SEM and energy dispersive X-ray spectroscopy (EDS). The experimental results indicated that aging heat treatment led to increase in the hardness values of Cu-Cr-Zr alloys and the highest wear loss was observed for non-aged specimens. With increasing sliding speed, the wear loss increased to a maximum value beyond which it decreased.