Heat cracks in brake discs for heavy vehicles

Effect of cast-iron disc thickness on the reliability of tribological data from pin-on-disc test: Case study of brake friction materials

“…However, at the end of the cycling, temperature of all pins exceeds 250 °C, especially when 22 mm disc slides with the pin, it rises to 270 °C. It can be explained by the formation of hot bands and deep localized spot more intensive at the mean radius of the contact [ 27 , 28 ]. It is important to note that temperature measurements were conducted from a depth of 2 mm into the contact surface.…”

The Improvement of the Operational Characteristics of the Ventilated Front Brake Discs

“…The working conditions of car brake discs are considered to be especially difficult. These are caused by the high contact pressures (up to 10 MPa) and intense frictional heating (up to 600 ° C), regarding dry abrasive friction [1][2][3][4]. An obstacle to further optimization of the materials in the manufacture of the "brake disc -pad" pair is the lack or insufficient information on the influence of the composition and technological factors on the operational properties of the friction pair parts, as well as the information on the mechanisms of friction and wear in the "brake disc -pad" pair [5][6][7][8][9].…”