Can high temperature of brake discs cause brake failure

       The high temperature of the brake disc may indeed lead to a decrease in braking performance, and even in extreme cases, brake failure may occur. The following is a detailed analysis of the impact of high temperature on brake performance of brake discs:
       1. Reasons for high temperature of brake discs
       The brake disc generates a large amount of heat due to friction during the braking process, especially during high-speed driving, frequent braking, or long downhill sections. In general, the instantaneous temperature during braking of a vehicle is about 250 degrees, and the temperature during emergency braking at high speeds can reach 350 to 500 degrees. If the heat cannot be dissipated in a timely manner, the temperature of the brake disc will continue to rise, leading to a series of problems.
       2. The impact of high temperature on brake performance
       Thermal attenuation: High temperatures can cause a decrease in the friction coefficient between brake discs and brake pads, a phenomenon known as thermal attenuation. Thermal attenuation will significantly reduce the braking effect and increase the braking distance. In extreme situations, such as track driving or continuous braking on long downhill slopes, thermal attenuation may lead to a significant decrease in braking performance, and even brake failure.
       Brake oil vaporization: High temperatures may also cause brake oil vaporization, generating bubbles, resulting in a softer brake pedal and a decrease in braking force. This phenomenon is called "air resistance" and can seriously affect the normal operation of the braking system.
       Brake pads and brake discs damaged: High temperatures can cause a decrease in the material properties of brake pads and brake discs, leading to increased wear of brake pads and deformation or cracking of brake discs. These damages will further reduce the braking effect and even lead to brake failure.

       3. How to prevent brake failure caused by high temperature of brake discs
       Choose suitable brake materials: high-performance brake discs and brake pads, such as carbon fiber ceramic brake discs and ceramic brake pads, with better resistance to thermal degradation.
       Optimizing brake system design: Using ventilated brake discs, perforated or lined brake discs can effectively improve heat dissipation performance. In addition, increasing the cooling air duct of the brake system ensures good air convection and also helps with heat dissipation.
       Good driving habits: Avoid frequent sudden braking and prolonged continuous braking, especially on long downhill sections, and use engine braking to reduce the burden on the braking system.
       Regular inspection and maintenance: Regularly inspect the brake system, including the condition of brake discs, brake pads, and brake fluid. Timely replace worn brake pads and deteriorated brake oil to ensure the normal operation of the brake system.
       4. Response measures in special circumstances
       Emergency situation: If the braking effect is weakened during driving, immediately slow down and stop safely to avoid emergency braking. Allow the brake system to cool naturally, or use engine braking to slow down.
       Track driving: For track driving or high-performance vehicles, it is recommended to upgrade the brake system professionally, such as replacing high-performance brake pads, installing brake cooling systems, etc.
       High temperature of brake discs can indeed lead to a decrease in braking performance, and even brake failure in extreme cases. By selecting appropriate brake materials, optimizing brake system design, maintaining good driving habits, and regularly inspecting and maintaining the brake system, it is possible to effectively prevent the risks caused by high temperature of brake discs and ensure driving safety.