Lubricated Rolling Wear of SiC-Whisker-Reinforced Al2O3 Composites against M2 Tool Steel |
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| Authors: | Haiyan Liu Morris E Fine H S Cheng Alan L Geiger |
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| Affiliation: | Center for Engineering Tribology, Northwestern University, Evanston, Illinois 60208;Advanced Composite Materials Corporation, Greer, South Carolina 29651 |
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| Abstract: | Lubricated rolling wear studies of SiC-whisker (SiCw) reinforced A12O3 composites and monolithic A12O3 against M2 tool steel were conducted using a cylinder-on-cylinder apparatus. The composites wore considerably less than A12O3. The wear of the tool steel against the composites was also considerably less than against A12O3. Microfracture occurred on a smaller scale in the composites than in the Al2O3. This was attributed to the differences in microstruc-ture and fracture toughness. The worn surfaces of the steel and the composites were polished, possibly due to fine, hard wear debris circulating with the lubricant to the contact area. |
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