国内外高速列车车轴技术综述及展望-中国材料进展

文章信息/Info

Title:: Overview and Prospect of Axle Technology for High Speed Trains at Home and Abroad

Author(s):: DU Songlin; WANG Kaizhong; HU Fangzhong; (Maanshan Iron and Steel Company Limited, Maanshan 243000, China)

Keywords:: high speed train; axle technology; axle steel; materials genome initiative(MGI)

摘要:: 高速动车组列车近年来在国内外获得广泛应用，是铁路客运最为有效的运输工具之一。高速列车车轴是动车组走行部中非常重要的部件，承受着源自车体及轨道的各种载荷，其中主要是旋转弯曲载荷和扭转载荷。高速列车车轴要保证在所规定的使用条件下，具有足够的安全性、可靠性和长使用寿命，这就对车轴材料及相关技术提出了非常高的要求。对比研究了国内外高速列车车轴技术，探讨国内外高速列车车轴的生产工艺流程、化学成分-组织-性能和结构设计等，在此基础上，对时速400 km以上的新一代高速列车车轴材料的发展方向进行了展望。目前，我国正基于材料基因组技术研发时速400 km的高速列车车轴用钢，这在世界上尚无先例。

Abstract:: High speed electric multiple units (EMU) train has been widely used in recent years at home and abroad. It is one of the most effective conveyances for passengers. The axle for high speed train is a very important part, which suffers from various loads of body and track，mainly including rotating bending and torsion loads. Ensuring the EMU axle with sufficient security, reliability and long service life raises very high demands for the axle material technology. Based on careful comparison of EMU axle technology at home and abroad, this paper discusses the process, chemical composition-microstructure-property relation, structure design etc., and forecasts the technological development of new generation axle for EMU with more than 400 km/h speed. At present, the axle steel for EMU with more than 400 km/h speed is being developed based on Materials Genome Initiative(MGI) technology in China.