Carbon Diffusion in Hot Strips of Low Carbon Steel Produced by CSP Line under Different Thermal Histories

作     者：HaoYU HaoREN YonglinKANG KeluWANG 

作者机构：SchoolofMaterialsScienceandEngineeringUniversityofScienceandTechnologyBeijingBeijing100083China LaiwuSteelGroupLTD.Laiwu271104China JinanIron&SteelGroupCo.Jinan250101China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2005年第21卷第1期

页      面：21-24页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Authors acknowledge the financial support from the National Natural Science Foundation of China(No.50334010) 

主　　题：Compact strip production Microstructure Precipitation Carbon diffusion Dislocation 

摘      要：Two experiments were carried out on the same compact strip production (CSP) line, which differs in that one of them experienced γ→α→γ thermal history. The differences in microstructure, precipitation, misorientation etc between two experiments were investigated by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron back-scattered diffraction (EBSD) and positron annihilation technique (PAT). The carbon concentration in matrix is more inhomogeneous in the experiment than that with γ→α→γ7 thermal history. The specific precipitation characteristic in the experiment without γ→α→γ thermal history is discussed on the basis of different carbon diffusion behavior and interaction between dislocation and excess carbon.