Experimental Investigation of the Effect of Brake Disconnished by Hvof Method

Authors : Mustafa BABAGİRAY, Hüseyin Bayrakçeken, Mehmet ÇAKMAKKAYA, Faruk Emre AYSAL, Salih KARANFİL

Pages : 57-61

Doi:10.30939/ijastech..557701

View : 19 | Download : 10

Publication Date : 2019-09-30

Article Type : Research Paper

Abstract :In this study; brake discs used in vehicles have investigated. The behavior of these discs during braking, wear and braking distance performance of the coated and uncoated surfaces during the braking process were evaluated. The surface of the commercially produced discs was coated with a thickness of 1 mm using the HVOF insert ignore into journalissuearticles values(High Velocity Oxy-Fuel); coating method. In the coating process CoNiCrAlY, WC-Co insert ignore into journalissuearticles values(88/12);, NiCrBSi and MoNiCrBSiFe insert ignore into journalissuearticles values(Mo 25%); 4 insert ignore into journalissuearticles values(four); different ceramic powders were used respectively. Wear and brake distance tests of coated and uncoated discs were performed by braking in a total of 20 brakes in 15 seconds on the brake-suspension tester. After the brake tests, the surface roughness changes of the discs, surface hardness change, mass loss and the abrasion values on the disc surfaces were determined due to the brake force applied to the discs during the experiment. The most wear on the discs was on the CoNiCrAlY ceramic powder coated disc at 0,4 g, while the least wear occurred on the disc coated with NiCrBSi ceramic powder at 0,2 g.
Keywords : Brake Disc, HVOF, Brake Test, Wear, Ceramic