Corrosion Sensor for Water-Contaminated Grease

Document identifier:
Access full text here:10.1080/10402004.2020.1770389
Keyword: Engineering and Technology, Corrosion, Experimentell mekanik, Maskinelement, Machine Elements, Sensors, Condition monitoring, Water contamination, Lubricating grease, Mechanical Engineering, Teknisk mekanik, Applied Mechanics, Tribologi (ytteknik omfattande friktion, nötning och smörjning), Maskinteknik, Teknik och teknologier, Tribology (Interacting Surfaces including Friction, Lubrication and Wear), Experimental Mechanics
Publication year: 2020
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SDG 11 Sustainable cities and communitiesSDG 6 Clean water and sanitationSDG 2 Zero hunger
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A simple and inexpensive corrosion sensor has been manufactured to study the corrosion rate of new and water contaminated lubricating grease using a galvanic cell. The galvanic charge is developed between ENIG (electroless nickel immersion gold) and zinc, manufactured by selectively plating on a custom manufactured interdigitated PCB (printed circuit board). This paper shows the methodology in using this concept for any application which may require quantifying the corrosivity of a liquid or semisolid which could be applied to the surface of the sensor. Water contamination is a problem in many grease lubricated machine components, so a sensor concept was developed and a correlation between water content and the corrosion rate is shown. This method could be used to precisely study the corrosion rate of aged or contaminated lubricants and could potentially be used as a cheap and simple way to estimate water contamination of grease. To the knowledge of the authors, this sensor concept has not been used in industry or literature.


Nicholas J. Dittes

Luleå tekniska universitet; Maskinelement
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Mikael Sjödahl

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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Anders Pettersson

Luleå tekniska universitet; Maskinelement
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Defeng Lang

SKF Nederland BV, Kelvinbaan 16, Nieuwegein, 3439 MT Netherlands
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