Texture and inhibitor features of grain-oriented pure iron produced by different cold-rolling processes  

作　　者：Jian-jun Deng Hai-jun Wang Zhe Rong Li Xiang Sheng-tao Qiu Yong Gan 

机构地区：[1]National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China [2]Wuyang Iron and Steel Co., Ltd., Hebei Iron and Steel Group, Wuyang 462400, Hebei, China [3]School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan 243032, Anhui, China

出　　处：《Journal of Iron and Steel Research International》2018年第10期1026-1032,共7页

基　　金：This work was financially supported by the National Natural Science Foundation of China （No. 51804003）.

摘　　要：To promote the manufacture of grain-oriented pure iron, the texture and inhibitor features of two samples A and B produced by different cold-rolling processes were studied by optical microscopy, X-ray diffraction, and transmission electron microscopy. The results showed that a higher content of inhibitor elements directly resulted in a greater number of fine inhibitors, which exhibited strong inhibitory ability, leading to more fine precipitates of appropriate size effectively inhibiting the growth of primary grains in decarburized bands （sheets） during the single-stage cold-rolling process. The formation of the component with { 110}〈001〉 Goss orientation was greatly suppressed in the stage of primary recrystallization, and this component could hardly be observed in the decarburized band; by contrast, the {411 }〈148〉-oriented grains grew. During the process of high-temperature annealing, abnormal growth occurred and secondary recrystallized grains （Goss orientation） merged with other matrix grains such as { 111 }〈112〉 and {411 }〈148〉. The magnetic induction of samples A and B at 800 Aim was 1.939 T and 1.996 T, respectively.To promote the manufacture of grain-oriented pure iron, the texture and inhibitor features of two samples A and B produced by different cold-rolling processes were studied by optical microscopy, X-ray diffraction, and transmission electron microscopy. The results showed that a higher content of inhibitor elements directly resulted in a greater number of fine inhibitors, which exhibited strong inhibitory ability, leading to more fine precipitates of appropriate size effectively inhibiting the growth of primary grains in decarburized bands （sheets） during the single-stage cold-rolling process. The formation of the component with { 110}〈001〉 Goss orientation was greatly suppressed in the stage of primary recrystallization, and this component could hardly be observed in the decarburized band; by contrast, the {411 }〈148〉-oriented grains grew. During the process of high-temperature annealing, abnormal growth occurred and secondary recrystallized grains （Goss orientation） merged with other matrix grains such as { 111 }〈112〉 and {411 }〈148〉. The magnetic induction of samples A and B at 800 Aim was 1.939 T and 1.996 T, respectively.

关 键 词：Grain-oriented pure iron Microstructure TEXTURE INHIBITOR Cold rolling 

分 类 号：TS210.1[轻工技术与工程—粮食、油脂及植物蛋白工程] O313.3[轻工技术与工程—食品科学与工程]