Extraction of features for surface topography by morphological component analysis. (July 2018)

• Record Type: Journal Article
• Authors: Wang, Yuechang; Liu, Ying; Zhang, Gaolong; Guo, Fei; Liu, Xiangfeng; Wang, Yuming
• Is Part Of: Tribology international. Volume 123(2018)
• Page Start: 191
• Page End: 199
• Publication Date: 2018-07
• Subjects: Surface topography -- Features -- Extraction -- Separation; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2018.03.001
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Surface topography is one of the important factors that influence tribological performance, for instance friction, lubrication, and wear. Moreover the functional features of the surface topography, such as peaks/pits and scratches, play an especially important role in the analysis and simulation of these tribological properties. In this study, a method was developed to simultaneously extract the peaks/pits and scratches as two separate surfaces from one measured surface topography scan. This technique was based on the morphological component analysis. A honed stainless steel surface, a lapped cemented carbide surface, and a lapped graphite surface were measured to verify the proposed method. The results showed that the peaks/pits and scratches could be separated and extracted from the measured surfaces. Highlights: A method used to extract features of surface topography is developed based on the morphological components analysis. Peaks/pits and line/curve like features of the real measured surfaces are successfully extracted and separated. The extraction method is convenient to implement by using open source codes.