Nb+Ti-IF钢二次冷轧性能和织构特征  

Mechanical Properties and Texture Characteristic of IF Steel Containing Nb and Ti by Secondary Cold Rolling

作　　者：张鹏 

机构地区：[1]威钢

出　　处：《柳钢科技》2009年第4期27-33,共7页

摘　　要：主要通过对铁素体区热轧板坯进行不同压下率的一次冷轧和二次冷轧试验,采用ODF对比一次冷轧观察了{100},{111}和Goss面织构在二次冷轧过程中的演变。二次冷轧的织构特征是获得较高占有率的{111}织构和较低占有率的{100}织构,二次冷轧在一次冷轧的基础上加强了{111}<112>组分。通过TEM和力学性能测试分析了二次冷轧中压下率分配方式对织构演变和材料最终退火组织性能的影响,为IF钢二次冷轧工艺工业化生产提供理论依据。Primary cold rolling and secondary cold rolling were applied to hot rolled strips with different reduction ratios. The evolutions of {100} , {111} and Goss face investigated by comparing the orientation distribution function （ODF） that of the primary rolled one. Secondary cold roiling texture during secondary rolling were of the secondary rolled sample with texture is characterized by a higher γ-texture and a lower a-texture, and the { 111} 〈112〉 component is improved remarkably. Based on the TEM observation and mechanical properties test, it is found that the reduction ratio assignment affects significantly the texture variation, as-annealing microstructures and properties of the secondary cold rolled samples. These results may provide a theoretical guide for the industrial production of secondary cold rolled IF steel.

关 键 词：IF钢 冷轧 二次冷轧 织构 

分 类 号：TG335.12[金属学及工艺—金属压力加工] TG146.21[一般工业技术—材料科学与工程]