Effect of cerium addition on microstructure and mechanical properties of as-cast high grade knives steel

作     者：Xi-ya Qiao Xiao Han Zhi-jun He Zhen Zhuang Xin Yang Fei-xiong Mao Xi-ya Qiao;Xiao Han;Zhi-jun He;Zhen Zhuang;Xin Yang;Fei-xiong Mao

作者机构：School of Materials and MetallurgyUniversity of Science and Technology LiaoningAnshan 114051LiaoningChina Ningbo Key Laboratory of Marine Protection MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201ZhejiangChina 

出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)

年 卷 期：2022年第29卷第12期

页      面：1986-1994页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：This work was financially supported by National Natural Science Foundation of China(51874171 and 51974154) supported by University of Science and Technology Liaoning talents program 

主　　题：Carbide Microstructure Mechanical property Cerium High grade knives steel 

摘      要：The carbides and mechanical properties of as-cast high grade knives steel with and without cerium(Ce)addition were *** as-cast microstructure of the steel,the size of carbide precipitation,carbide morphology,and mechanical properties were systematically studied through optical microscopy,scanning electron microscopy,and X-ray ***,through the Equilib module of the FactSage thermodynamics software,the changes in the precipitation type of the inclusions with Ce during the solidification of the steel were *** results indicate that the rare earth Ce is added into the steel to refine the as-cast microstructure of the *** types of inclusions in the steel are changed by the addition of *** precipitated carbide morphology changes from a complex rod shape to a relatively single lamellar *** rare earth inclusions formed in steel by a moderate addition of Ce can be severed as the core of heterogeneous nucleation of carbides,which reduce the size of carbide precipitation,promote the uniform distribution of carbide in the as-cast steel,and improve the mechanical properties of the as-cast high grade knives steel.