冷轧压下率对温轧Ti-IF钢板织构的影响
Effect of Cold Rolling Reduction on Texture in Warm Rolled Ti-IF Steel Sheet
摘 要
采用X射线衍射仪、光学显微镜和扫描电镜等分析了冷轧压下率(10%~85%)对温轧Ti-IF钢板宏观织构、显微组织、晶粒内部结构和晶粒取向的影响,采用拉伸试验机测试了不同压下率下退火Ti-IF钢板的力学性能.结果表明:随着压下率的增大,Ti-IF钢板γ取向的晶粒不断向α取向晶粒转动,织构由单一的γ纤维织构变为γ纤维织构和α纤维织构共存;随着压下率的增大,平均塑性应变比r先增大后降低,当压下率为75%时,r达到最大值.
冷轧
γ纤维织构
α纤维织构
Ti-IF steel
cold rolling
γ fiber texture
α fiber texture
Abstract
The effect of cold rolling reduction (10%-85%) on macro texture,microstructure,inner structure of the grain and grain orientation of the warm rolled Ti-IF steel sheet had been investigated by means of X-ray diffraction,optical microscope and scanning electron microscope.The mechanical properties of the annealed Ti-IF steel sheet with different reductions were tested by tensile testing machine.The results show that with the increasing reduction γ-orientation grains of the Ti-IF steel sheet gradually rotated to α-orientation grains,and thus the texture was composed of γ fiber texture and α fiber texture instead of single γ fiber texture.The average plastic strain ratio r value increased first and then decreased with the increase of the reduction.The highest r value could be obtained with the reduction of 75%.
中图分类号 TG302
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50104004)
收稿日期 2009/10/12
修改稿日期 2010/6/11
网络出版日期
作者单位点击查看
备注郭艳辉(1981-),女,河北沧州人,博士.
引用该论文: GUO Yan-hui,WANG Zhao-dong,WANG Guo-dong,WEI Li-qun. Effect of Cold Rolling Reduction on Texture in Warm Rolled Ti-IF Steel Sheet[J]. Materials for mechancial engineering, 2010, 34(11): 9～13
郭艳辉,王昭东,王国栋,魏立群. 冷轧压下率对温轧Ti-IF钢板织构的影响[J]. 机械工程材料, 2010, 34(11): 9～13
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参考文献
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【2】LI B L,GODFREY A,LIU Q,et al.Microstructural evolution of IF-steel during cold rolling[J].Acta Mater,2004,52(4):1069-1081.
【3】蔡艳霞.冷轧IF钢板织构、微观组织及其相互关系的研究[D].沈阳:东北大学,2005.
【4】SHEN K,DUGGAN B J.Microbands and crystal orientation metastability in cold rolled interstitial-free steel[J].Acta Materialia,2007,55(4):1137-1144.
【5】ROE R J.Orientation distribution function of crystallites materials in materials[J].Journal of Applied Physics,1965,36(6):2024-2031.
【6】FRANCIOSI P.Glide mechanisms in BCC crystals:an investigation of the case of α-iron through multislip and latent harden-ing tests[J].Acta Metall,1983,31(9):1331-1342.
【7】KESTENS L,JONAS J J.Modeling texture change during the static recrystallization of a cold rolled and annealed ultra low carbon steel previously warm rolled in the ferrite region[J].ISIJ International,1997,37(8):807-814.
【8】CALNAN E A,CLEWS C J B.The development of deformation textures in metals-part Ⅱ.Body-centred cubic metals[J].Philosophical Magazine,1951,42:616-635.
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