Laboratory Evaluation of Laser Cladding on Railway Wheel Steels

Regular assessments of in-service wheel/rail systems are vital to manage operational costs and preserve rail infrastructure. Train wheels often suffer wear and damage, necessitating repair or replacement through conventional but inefficient welding processes. Achieving specific surface attributes like wear, corrosion, and fatigue resistance without affecting bulk properties poses challenges. Laser cladding, known for precise protective coatings, displays potential in enhancing wear and fatigue resistance in rail components. This study investigates laser cladding parameters for metro and freight train wheels using statistical analysis and deposit examinations, evaluating phase formation and mechanical properties for durability improvements.