Environmental effects on tribological behaviour of composite materials

Yıl 2018, Cilt: 2 Sayı: 3, 234 - 239, 15.12.2018

Deniz Degirmenci Murat Kisa Mustafa Ozen Gökhan Demircan

Öz

In recent years, developments in
industrial applications has led to the demand for materials with better
properties. Composite materials provide these requirements due to their high
mechanical properties. Especially in the last half century, the production of
composite materials used in industrial areas such as space, marine, aeronautics
has increased to a great extent. This increase has led scientists to work on
composite materials. One of these work areas is tribological behaviour. It is
inevitable that the wear of the composite materials occurs due to surface
roughness of the parts in contact with each other; therefore, they may not
fulfill the functions expected from them. It is important to determine how
tribological behaviour of composites used in almost all areas of the industry will
be present in working conditions. In this study, wear and frictional
characteristics of carbon fiber reinforced epoxy composites subjected to
different environmental effects (soil, water, solar) were investigated under
dry contact condition at different operating parameters. Vacuum Assisted Resin
Infusion Technique (VDRIT) was used for the production of composite materials. Environmental
effects, exposure times and applied loads on the friction coefficients and wear
amounts were investigated. Wear tests were carried out under three different
loads of 10 N, 20 N, 30 N, sliding distance of 2000 m and at a speed of 0.2 m/s.
Wear rate in the experiments was calculated as weight loss. The tests were carried
out on samples for each load and their average values ​​were taken. Similar to
the results found in the literature, when carbon fiber reinforced composite
materials were exposed to different environmental effects, the friction coefficients
decreased and the wear rate increased. The use of information and data obtained
with this study will guide material selection of machine tools manufactured
from composite materials in different environmental conditions.

Anahtar Kelimeler

Carbon Fiber, Environmental Effects, Polymer Composite, Tribology

Kaynakça

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