期刊
TRIBOLOGY INTERNATIONAL
卷 93, 期 -, 页码 306-317出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2015.09.035
关键词
Worn surface; Wear process; Fractal dimension; Multifractal spectrum
资金
- National Natural Science Foundation of China [51375480]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
The dynamic evolution law of brass surface in brass-steel tribopair during wear process is studied by using monofractal and multifractal methods. Wear tests are performed on a ring-on-disc tribometer under mixed lubrication. The profile of brass surface is measured by the reposition-measurement apparatus. Both the maximum peak-to-valley height Rt and the width of multifractal spectrum Delta alpha decrease in running-in wear stage, maintain at a small value in steady wear stage, and increase rapidly in severe wear stage. While the evolution of fractal dimension is opposite to that of Rt and Act. The results are instructive to wear state identification. (C) 2015 Elsevier Ltd. All rights reserved.
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