Journal sliding bearing tests were performed under non-lubricated and water-lubricated conditions. Journals made of Al2O3 were slid against bushes made of Sialon, ZrO2, Al2O3, and SUS304 stainless steel. The Al2O3/Al2O3 combination exhibited the best performance under these test conditions. The wear amount and friction coefficient under the water-lubricated condition were smaller than those under the non-lubricated condition except for the case of Sialon/Al2O3 combination. The wear of Sialon might be increased under the influence of the hydrate formed on the sliding surface by tribochemical reaction. The wear amount of Al2O3 journal was largest in the case of SUS304/Al2O3 combination, in which the wear mode was micro-chipping. On application of Al2O3 under the water-lubricated condition, wear of Sialon in the case of Al2O3/Sialon combination, stress corrosion wear of ZrO2 in the case of Al2O3/ZrO2 combination, and wear of Al2O3 by micro-chipping in the case of Al2O3/SUS304 combination must be considered.
|Number of pages||6|
|Journal||Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C|
|Publication status||Published - Oct 1997|
ASJC Scopus subject areas
- Mechanical Engineering