Quickly obtaining densely dispersed coherent particles in steel matrix and its related mechanical property  

作　　者：Xiaoxiao Wang Qingsong Huang 

机构地区：[1]School of Chemical Engineering,Sichuan University,Chengdu 610065,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第1期111-118,共8页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51771125);the Sichuan Province Science and Technology Support Program(No.2020YFG0102)。

摘　　要：Densely distributed coherent nanoparticles(DCN)in steel matrix can enhance the work-hardening ability and ductility of steel simultaneously.All the routes to this end can be generally classified into the liquid-solid route and the solid-solid route.However,the formation of DCN structures in steel requires long processes and complex steps.So far,obtaining steel with coherent particle enhancement in a short time remains a bottleneck,and some necessary steps remain unavoidable.Here,we show a high-efficiency liquid-phase refining process reinforced by a dynamic magnetic field.Ti-Y-Mn-O particles had an average size of around(3.53±1.21)nm and can be obtained in just around 180 s.These small nanoparticles were coherent with the matrix,implying no accumulated dislocations between the particles and the steel matrix.Our findings have a potential application for improving material machining capacity,creep resistance,and radiation resistance.

关 键 词：ferritic steels coherent particles MICROSTRUCTURE compression test work hardening 

分 类 号：TG142.1[一般工业技术—材料科学与工程]