深冲冷轧板塑性应变比及各向异性与织构相关性分析  

The Correlation of Plastic Strain Ratio and Planar Anisotropy with the Texture of Deep-drawing Cold Rolled Sheets

作　　者：王德宝[1] 张峰[1] 杨丽珠[1] 方政[1] 

机构地区：[1]马鞍山钢铁股份有限公司

出　　处：《安徽冶金》2014年第4期27-30,56,共5页Anhui Metallurgy

摘　　要：采用X射线衍射三维取向技术(ODF)并结合力学性能试验及金相组织观察,着重研究了不同冲压级别的深冲冷轧板塑性应变比(r)及平面各向异性系数(Δr)与织构之间的相互关系。从织构角度探讨了深冲冷轧板r和Δr差异的原因。研究结果表明织构的组分、含量及取向密度与深冲板板的r值和Δr具有较强的相关性和一致性。获得高取向密度的γ纤维织构({111}//ND)有利于改善深冲钢板的r值,是提高材料深冲性能的有效手段。X-ray diffraction 3D orientation technology （ODF analysis）, mechanical property test and metallurgical optical microscopy （OM） were comprehensively used to study the correlation of plastic strain ratio （r） and planar ani- sotropy parameter （△r） with the texture of deep-drawing cold rolled sheets with different stamping grades. Causes of the difference between the r and Ar values of deep-drawing cold rolled sheets were discussed from the perspective of texture. The results indicated that the components, fraction and orientation density of the texture have strong correla- tion and consistency with the r and △r values of deep-drawing sheets. The γ fiber texture （{ 111 }//ND） with high ori- entation density is favorable for r value improvement and is an effective means to improve the deep--drawing property of steel.

关 键 词：深冲冷轧板 塑性应变比 平面各向异性 织构 

分 类 号：TG115[金属学及工艺—物理冶金]