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金属学报  2004, Vol. 40 Issue (10): 1045-1050     
  论文 本期目录 | 过刊浏览 |
IF钢织构与晶界特征分布的研究
曹圣泉 张津徐 吴建生 陈家光
上海交通大学高温材料及高温测试教育部重点实验室; 上海 200030
Study of Texture and Grain Boundary Character Distributions of IFSteels
CAO Shengquan; ZHANG Jinxu; WU Jiansheng; CHEN Jiaguang
Key Laboratory of the Ministry of Education for High Temperature Materials and Testing; Shanghai Jiaotong University; Shanghai 200030
引用本文:

曹圣泉; 张津徐; 吴建生; 陈家光 . IF钢织构与晶界特征分布的研究[J]. 金属学报, 2004, 40(10): 1045-1050 .
, , , . Study of Texture and Grain Boundary Character Distributions of IFSteels[J]. Acta Metall Sin, 2004, 40(10): 1045-1050 .

全文: PDF(69136 KB)  
摘要: 对IF钢板的罩式退火(BA)和连续退火(CA)工艺进行了模拟实验,并运用EBSD技术对两种IF钢板的织构、晶界特征分布及其与二次加工脆性之间的关系进行了研究。结果表明, 两种不同退火工艺的IF钢板在织构和晶界特征分布上存在很大的差异:(1) 连续退火IF钢板呈现强烈的111再结晶织构,它由两类取向晶粒组成;罩式退火IF钢板的111再结晶织构相对较弱,且主要由111-110组成;(2) 连续退火IF钢板中含有较多的3, 13, 9和11重位晶界, 而罩式退火的IF钢板中只含有3和13重位晶界;(3) 连续退火IF钢板中低能晶界与高能随机晶界均匀分布;而罩式退火IF钢板中低能晶界成团集中分布;高能晶界分布在团簇周围构成粗大的网状;这是IF钢板产生二次加工脆性的重要原因。
关键词 IF钢织构晶界特征分布    
Abstract:The batch annealing and continuous annealing of IF steel sheets have been simulated. Texture, grain boundary character distributions (GBCD) and their relations with secondary working embrittlement (SWE) were investigated by electron back-scatter diffraction (EBSD).The results show that the two kinds of IF sheets are great difference in texture and grain boundary character distributions: (1) Continuous annealing IF sheets have a strong 111 recrystallization texture composed , while the batch annealing IF sheets is composed of weak texture ; (2) Large numberCSL boundaries produced in continuous annealing IF sheets, while in batch annealing IF sheets CSL boundaries obviously occurred; (3) Low energy boundaries distributed uniformly in continuous annealing IF sheets, while in batch annealing IF sheets low energy boundaries are accumulative, and random boundaries distribute around the low energy boundaries to form a thick network, which leads to the SWE.
Key wordsIF steel    texture    grain boundary character distribution
收稿日期: 2003-11-12     
ZTFLH:  TG113.1  
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