High-performance cold gas coating for brake discs

Brake discs are a critical component of an automotive braking system transforming kinetic energy into thermal energy during braking, which raises the temperature of the disc friction surfaces. Brake wear emissions, such as brake dust and particulate matter, are a growing source of concern for the automotive industry. They contribute considerably to rising pollution levels and represent a problem in the face of more demanding stringent and environmental regulations. Gray cast iron is the commonly used material for brake discs due to its low manufacturing costs and durability. Poor corrosion resistance and excessive wear of the brake disc during operation are the main problem areas. Since no material can compete with gray cast iron for vehicle brake disks from a cost perspective, the coating of gray cast iron disks is a practicable and inexpensive solution.