The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

Öz

The movement of moving devices or machines in terms of safety perspective must be controlled. In modern vehicle applications, braking is closely related to safety. Slowing or breaking the movements of vehicles safely is the task of braking mechanisms. The most important components of these mechanisms are the disc and brake lining pairs. Brake discs are made of lamella graphite cast iron. During the braking, the kinetic energy of the vehicle is converted into the heat energy through friction. The braking elements are subject to very heavy thermo mechanical conditions under heat, speed and load. The friction and wear properties of the brake disc must be thermally more stable against the heat energy generated on it in order to maintain stability. In this study, mechanical properties of the brake discs, which the disc surface was coated with flame spraying and melting, were improved. In addition, microstructure, abrasion, hardness and surface roughness tests of the brake disc were conducted. As a result, the coated disc showed superior mechanical properties compared to the original disc.

Anahtar Kelimeler

• Brake discs,coating methods,flame spraying,wear

Kaynakça

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