深冲钢板的织构及塑性应变比r值的模型计算  

Texture and modeling calculation of r values of deep drawing steel sheet

作　　者：马全仓[1] 毛卫民[1] 冯惠平[1] 王利[2] 杜磊[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]宝钢股份公司技术中心,上海201900

出　　处：《塑性工程学报》2007年第4期60-63,共4页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(50171014);国家"863"计划资助课题(2003AA331080)

摘　　要：检测了无间隙原子钢(IF钢)板的织构及板材与轧向夹角为0°、15°、30°、45°、60°、75°、90°的r值。模拟计算了Sachs模型和反应应力模型在体心立方结构12个{011}<111>滑移系开动情况下的拉伸变形规律。基于两个变形模型和板材的织构信息,计算了板材与轧向不同夹角时的r值。对不同模型的计算值与实测值进行了比较,分析了误差产生的原因。The textures and r values in directions of 0°, 15°, 30°, 45°, 60°, 75°, 90° to rolling direction of IF steel sheet were measured. The tensile direction evolution according to Sachs model and Reaction stresses model were calculated based on 12 slip- ping systems {011} 〈111〉. R values of different angles from rolling direction were calculated according to the two models and the textures of the sheet. The results of measured and calculated r values of IF steel sheet were compared with each other, and the reasons of deviation were discussed.

关 键 词：深冲钢板 织构 塑性变形模型 r值 

分 类 号：TG113.26[金属学及工艺—物理冶金]