本文综述了ADI材料的发展简况及材料特点，重点分析了ADI材料在轨道交通行业的典型案例研究和应 用情况，厘清了面临的困境和挑战。 预测了ADI材料在轨道交通领域的发展新趋势，明确了ADI材料在轨道交通行业 轻量化应用中潜在的广阔发展前景。

A comprehensive overview of the evolutionary development and material properties of austempered ductile iron (ADI) materials is provided. It highlights typical case studies and practical applications of ADI materials within the rail transportation sector while systematically analysing the current dilemmas and technical challenges encountered. It forecasts emerging trends in rail transportation, with a specific focus on the innovative utilization of ADI materials, and elucidates the substantial potential of ADI materials for advancing lightweight applications in rail transportation.