Wear and friction behavior of pressure infiltration cast copper-carbon composites


Goller G. , KOTY D., TEWARI S., SINGH M., TEKIN A.

SCANDINAVIAN JOURNAL OF METALLURGY, cilt.30, sa.2, ss.77-83, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Konu: 2
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1034/j.1600-0692.2001.300204.x
  • Dergi Adı: SCANDINAVIAN JOURNAL OF METALLURGY
  • Sayfa Sayıları: ss.77-83

Özet

Metal matrix composites, prepared by pressure infiltration casting of copper base alloy into 2 types of microporous carbon preforms, one with 100% amorphous carbon and the other containing 40 wt pct. graphite and 60 wt pct. amorphous carbon, have been examined for their wear and friction behavior under ambient conditions using a pin-on-plate reciprocating wear tester. Micro-structural characterization of tribe-surfaces has been carried out. The thin carbon films formed on the tribe-surface reduced the friction coefficient and wear for the composites, especially at low loads on the pin. Adhesive wear observed on the tribe-surface promoted wear and friction at high loads. The wear and friction were observed to be very sensitive to the size and distribution of the microstructural constituents.