With the increasing demand of high quality carburizing steel for key spare parts as well as proposal of"car-bon peaking and carbon neutrality goals",the requirements for such comprehensive properties of carburizing gear steel as wear resistance and strength and toughness are higher.It is the development direction of carburizing gear steel to develop high efficiency,energy saving,low carbon and economic high temperature carburizing technology with rare earth microalloying.In the paper,it is discussed the key problems and regulation of microstructure and properties for applications of rare earth in high temperature carburizing gear steel as well as summarized the applications and development trend of high temperature carburizing for gear steel with rare earth microalloying through introducing the applications and development situations of high temperature carburizing gear steel at home and abroad,which are of great significances for developing high temperature carburizing gear steel with rare earth characteristics.
关键词
齿轮钢/高温渗碳/稀土微合金化/组织性能
Key words
gear steel/high temperature carburizing/rare earth microalloying/microstructure and properties
维普
万方数据