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Abrasion testing of organic corrosion protection coating systems with a rotating abrasive rubber wheel

 
: Momber, Andreas W.; Irmer, Michael; Glück, Nikolai; Plagemann, Peter

:

Wear 348-349 (2016), S.166-180
ISSN: 0043-1648
ISSN: 1873-2577
Englisch
Zeitschriftenaufsatz
Fraunhofer IFAM ()
Fraunhofer IPA ()
Abtragsverhalten; Korrosionsschutzschicht; organische Beschichtung; Korrosionstest

Abstract
The abrasive wear performance of six organic offshore coating systems is investigated at two temperature levels (0 °C and 20 °C) with a rotating wheel abrasion tester. The relationship between exposure time (in terms of number of revolutions) and coating thickness reduction follows a linear relationship: Δh=C1·nR+C2. The reverse of the progress parameter (1/C1) is defined as abrasion resistance. This parameter is found to be sensitive to the testing temperature; it decreases for most of the coatings for the lower temperature. Combined SEM/EDX analyses reveal a number of material removal modes. The separation and pull-off of filler/pigment particles contribute notably to the material abrasion on all coating systems at the two temperature levels. Type, distribution and hardness of filler materials are important design parameters. A model of Bello and Wood (2005) [33] for filled polyamides is adapted and extended in order to systematically register different material removal modes. Image analysis is applied to quantify filler particle distribution and size.

: http://publica.fraunhofer.de/dokumente/N-381958.html