There is an increasing interest for the application of metal matrix composites (MMC's) in the automotive industry. Some of the possible applications require good wear resistance. In the present work, five kinds of Al-SiCp (10% vol and 20% vol) composites, with reinforcement size ranging between 0.8 and 20 μm, were tested by means of a pin-on-disk tribometer: the composites acted as pins, sliding against heat treated carbon steel disks. The wear tests results were compared to those of unreinforced aluminum and related to the microstructural characteristics of the composites, studied by means of light and electron microscopy and by X-ray diffraction. Some guidelines for understanding the wear mechanisms of Al-SiCp composites were also developed.
THE EFFECT OF REINFORCEMENT VOLUME FRACTION AND SIZE ON THE WEAR BEHAVIOUR OF Al-MATRIX COMPOSITES
BONOLLO, FRANCO;GIORDANO, LUIGI;TIZIANI, ALBERTO;ZAMBON, ANDREA
1993
Abstract
There is an increasing interest for the application of metal matrix composites (MMC's) in the automotive industry. Some of the possible applications require good wear resistance. In the present work, five kinds of Al-SiCp (10% vol and 20% vol) composites, with reinforcement size ranging between 0.8 and 20 μm, were tested by means of a pin-on-disk tribometer: the composites acted as pins, sliding against heat treated carbon steel disks. The wear tests results were compared to those of unreinforced aluminum and related to the microstructural characteristics of the composites, studied by means of light and electron microscopy and by X-ray diffraction. Some guidelines for understanding the wear mechanisms of Al-SiCp composites were also developed.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
