7th International Conference on Advanced Concepts in Mechanical Engineering | |
Preliminary experimental research on friction characteristics of a thick gravitational casted babbit layer on steel substrate | |
Paleu, V.^1 ; Georgescu, S.^2 ; Baciu, C.^2 ; Istrate, B.^1 ; Baciu, E.R.^3 | |
Mechanical Engineering Faculty, Technical University of Iasi, Romania^1 | |
Materials Science and Engineering Faculty, Technical University of Iasi, Romania^2 | |
University of Medicine and Pharmacy Gr. T. Popa, Iasi, Romania^3 | |
关键词: Antifriction materials; Catastrophic failures; Different speed; Experimental research; Friction characteristics; Friction coefficients; Tribological pairs; Wear intensities; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012028/pdf DOI : 10.1088/1757-899X/147/1/012028 |
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来源: IOP | |
【 摘 要 】
The ability of the antifriction materials to withstand with no lubrication for a while can be a solution for the catastrophic failure of automotive journal bearings from the internal combustion engines in accidental breakdown of the oil pump. A thick layer of antifriction material (babbit) was deposited by gravitational casting on a steel disk substrate. Four tribological disk samples coated with babbit are tested against a steel shoe on Amsler tribometer at different speeds and loads in dry friction. The values of the friction coefficient versus speed and load are presented, the obtained results indicating a mild wear regime, recommending the new babbit as a possible coating for the bushes of the journal bearings in automotive internal combustion engines. Further tests must be dedicated to the establishment of the wear intensity of the steel shoe - babbit disk tribological pair, both for motor oil lubricated and dry friction conditions.
【 预 览 】
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Preliminary experimental research on friction characteristics of a thick gravitational casted babbit layer on steel substrate | 1838KB | download |