摘要
珠光体钢具有高强度和优异的耐磨性,广泛应用于铁路车轮。首先总结了目前我国高速动车组车轮的应用现状、轮辋强韧性水平及主要损伤形式;其次,结合350 km/h自主化高铁车轮钢的研发思路从珠光体组织及夹杂物改性控制方面重点介绍了轮辋材料强韧化机理及超高周疲劳性能的研究进展;最后,从冶金与材料学角度提出了未来更高时速高铁车轮用钢的发展思路。
Pearlitic steels are widely used in railway wheels due to its excellent strength and wear resistance.In this paper,the recent application status of high-speed railway wheels and the strength/toughness levels and typical failure forms of wheel rim in China were firstly summarized.Secondly,recent progress was reviewed with emphasis on the strengthening/toughening mechanism and the ultra-high cycle fatigue properties of 350 km/h high-speed railway wheel rim from the aspects of pearlitic structure and inclusion modification.Finally,some suggestions were proposed for the future development of wheel steels on the basis of metallurgy and materials science.
作者
周世同
李昭东
杨才福
雍岐龙
ZHOU Shitong;LI Zhaodong;YANG Caifu;YONG Qilong(School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University,Nanchang Jiangxi 330063,China;Department of Structural Steels,Central Iron and Steel Research Institute,Beijing 100081,China)
出处
《高速铁路新材料》
2024年第3期1-9,共9页
Advanced Materials of High Speed Railway
基金
国家重点基础研究发展(973)计划资助项目(2015CB654803)
南昌航空大学博士启动基金(EA202003149)。
关键词
高铁车轮
珠光体
合金化
强韧性
疲劳性能
high-speed railway wheel
pearlite
alloying
strength and toughness
fatigue properties
