| Autor: |
Smirnova, E. O., Veretennikova, I. A., Smirnov, S. V., Pestov, A. V., Konovalov, D. A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2018, Vol. 2053 Issue 1, p030066-1-030066-4, 4p |
| Abstrakt: |
The aim of this paper is to study the effect of substrate roughness parameters on the mechanical and adhesive properties of a coating based on the ETP-2 hot-setting one-component epoxy glue. Specimens with different surface roughness made of an AMg6 aluminum-magnesium alloy plate are used as a substrate. The surface mechanical properties (hardness and reduced elastic modulus) of the coatings are estimated with the use of a Hysitron TI 950 Triboindenter system. Scratch tests are performed with the use of a Zwick-2.5 universal testing machine. The value of the surface energy of adhesive failure serves as an evaluation parameter. It has been found that surface roughness significantly affects the adhesive properties of the ETP-2 one-component epoxy glue; this manifests itself in a change in the surface peel energy and tells on the form of the scratches. The highest adhesive strength is reached when the glue is applied onto a surface with a roughness Ra = 0.35 μm. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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