Defectometry Analysis of Surface Condition Damaged with Corrosion Pitting

Abstract:

The dismantled tubes of the steam-boiler operated by the “Kalush Heat and Power Plant” were investigated. Defects of various nature, pitting of the indefinite shape were found during the examination. Since pitting is a deepening in the material and contains dark products of the corrosion process. It looks like a darkened area that stands out against the light background of the non-damaged surface in the optical images. The efficiency of such processing for identification of the corrosion defects is analyzed. The suitability of the proposed methods for the calculation of Shannon entropy of the surface analyzed was tested, as well as for determining the area and number of pitting defects.

• Periodical: Materials Science Forum (Volume 818)
• Pages: 153-157
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.818.153
• Online since: May 2015
• Authors: Pavlo Maruschak, Igor Konovalenko, Anna Guzanová*, Petro Sydor, Sergey Panin
• Keywords: Corrosion, Damage, Damage of Materials, Pitting, Surface

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