IF钢与ELC钢织构及性能的对比  

Comparison of Texture and Properties of IF Steel with ELC Steel

作　　者：郭艳辉[1] 王昭东[1] 李守卫[1] 邹闻文[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2007年第12期1713-1716,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50104004)

摘　　要：研究了经铁素体区热轧、冷轧和退火生产的ELC钢和IF钢的组织、织构及性能．结果表明，铁素体区热轧后，ELC钢中的大部分组织是变形带；而IF钢中已经形成了等轴晶粒．ELC钢的热轧织构中形成了较强的α织构和很弱的），织构，织构主要组分集中在{001}〈110〉～{223}（110）；而IF钢中形成了强的），织构和很弱的α织构．ELC钢的退火织构中主要是），织构，但仍有较弱的α织构存在；IF钢的退火织构中只有很强并且均匀的γ织构，强度明显高于ELC钢的退火织构．与ELL；钢相比，IF钢的平均塑性应变比（r值）高出0．6，延伸率高出5％，同时，抗拉强度升高，而屈服强度降低．The microstructure, texture and mechanical proprerties of an ELC steel and an IF steel both produced by hot rolling in ferrite region, cold rolling and annealing were compared. The results showed that deformation bands are dominant in the ELC while equiaxed grains grow in the IF after hot rolling in ferrite region, The hot band texture of ELC includes not only strong α-fiber but weak γ-fiber, while that of IF is mainly the γ-fiber. However, after cold rolling and annealing, ELC presents mainly the γ-fiber texture with peak at {111} （112）, and IF presents the strong and well-proportioned γ-fiber texture which provides obviously higher strength than ELC. Moreover, the values of mean plastic strain ratio and percentage elongation of IF are 0.6 and 5% higher than ELC, respectively, with higher tensile strength and lower yield strength provided.

关 键 词：ELC钢 IF钢 铁素体区热轧 织构 r值 

分 类 号：TG302[金属学及工艺—金属压力加工]