Tribological Behavior

Abstract: The purpose of this study is to see how carbon fiber and graphite reinforcement affects the strength, wear, hardness, etc. of the ZA-27 alloy. The stir casting process was used to create composites containing carbon fiber and graphite particles. Using a block-on-disk tribometer, the tribological characteristics of unreinforced alloys and composites were investigated at various specific loads and sliding speeds. In all combinations of applied loads (Fn) and sliding speeds (v) in testing, the ZA-27/ graphite composite specimens displayed much lower wear performance than the matrix aluminum specimens. Nonuniform triboinduced graphite films were generated in test circumstances defined by a low graphite content and low sliding speeds and applied loads, resulting in a rise in the friction coefficient and wear rate as the sliding speed and applied load increased. It was found that reinforced samples performed better tribologically. Carbon fiber and graphite reinforced ZA-27 may find new applications in various machine parts in the industry.