CSP热轧低碳钢板轧制过程中析出行为分析  

Analysis of precipitate behaviors of hot rolling of low carbon steel produced by CSP

作　　者：姜广林[1] 王克鲁[2] 于海龙[1] 姚克强[1] 刘温聚 刘淑艳[4] 

机构地区：[1]济南钢铁集团总公司,山东济南250101 [2]北京科技大学,北京100083 [3]山东工业职业学院,山东淄博255070 [4]天津冶金规划设计研究院,天津300061

出　　处：《山东科学》2004年第4期25-28,共4页Shandong Science

摘　　要：采用H-800透射电镜研究CSP热轧低碳钢轧制过程中析出物形貌、尺寸、及分布等,结果表明:累积变形量较小,变形温度较高时,第二相粒子主要在晶界或相界上形成,数量较少且比较粗大,尺寸多在150nm以上;随着轧制过程的进行,累积变形量的增大和轧制温度的降低,第二相粒子主要在晶内析出,细小、弥散且数量较多,尺寸大多数在20～100nm之间,析出物主要为Al2O3、MnS、Cu7S4和Fe3C。The precipitates of thin foil and dislocations density of hot rolling of low carbon steel produced by CSP were observed using H-800 transmission electron microscopy. A few of precipitates, mainly located in grain boundaries, with average dimension about 150nm were observed in front of pass. With heavy deformation and temperature decrease, many fine and dispersive particles with dimension about 20～100nm were found in grains. The composition of precipitates were mainly Al_(2)O_(3), MnS , Fe_(3)C and Cu_(7)S_(4).

关 键 词：CSP 析出 低碳钢 

分 类 号：TG115.213[金属学及工艺—物理冶金]