Revealing the evolution of heat treatment micro stress of the raceway for 8Cr4Mo4V steel bearing rings

Key Points

• Micro stress patterns were observed to change significantly during heat treatment, enhancing performance reliability.
• Key evidence shows micro stress variations of up to 20% after specific heat treatment processes.
• Observational analysis focusing on heat treatment of 8Cr4Mo4V steel bearing rings was conducted to identify critical stress changes.
• Understanding the micro stress evolution may improve the durability and lifespan of bearing materials.