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Investigation of surface after erosion using optical profilometry technique

Tarasiuk Wojciech, Szymczak Tadeusz, Borawski Andrzej

Metrology and Measurement Systems

2020

Vol. 27, nr 2

265--273

The paper reports experimental results of the analysis of the 145Cr6 steel surface after erosion using the profilometrical technique by means of interferometry streaks. Erosive tests were carried out using abrasive containing quartz sand used in water jet cutting. Differences in the intensity of erosive wear were dependent on the angle of the abrasive stream (10°; 15°; 20°; 30°; 60°; 90°). In order to determine the characteristic features of the surface layer after the impact of the erosive stream, its characteristic parameters, such as roughness Ra and Sa for linear and field measurements, were analysed. Geometrical features of the regions investigated, such as shape, depth, angle of the abrasive stream, are presented. The analysis was carried out in two-dimensional (2D) and three-dimensional (3D) coordinate systems.