TRIBOLOGICAL INVESTIGATION OF THE AUTOMOTIVE GRADE ALUMINIUM ALLOY WITH EPOXY PRIMER COATING

Mechanical surface preparation is a common technique for removing contaminants from metal layers. Unlike chemical preparation, it does not require special safety measures, including those disposal of by-products or toxic materials, thus making more accessible different industries. We investigated tribological testing as the experimental method to determine quality coating and influence initial mechanical treatment. Samples were made aluminium alloy EN AW 5083 H111 that was shot blasted with white cast resulting roughness Rz=38.908 μm. further coated Lankwitzer EvoCor 164 2-component epoxy primer. Tribological test realised on nanotribometer described output parameters have been analysed: friction coefficient penetration depth. Ball-on-flat, dry contact setup used, 100 mN normal load, under linear reciprocating motion. Dynamic depth curves during one analysed indicating moment when exhibited first failure. The has shown tests low loads can be used thin coatings, adhesion.