Texture evolution and its simulation of cold drawing copper wires produced by continuous casting
Texture evolution and its simulation of cold drawing copper wires produced by continuous casting
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连铸冷拔铜线织构演化及其模拟
DOI：
10.1016/s1003-6326(11)60692-4
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发表时间：
2011-01-01
影响因子：
4.5
通讯作者：
Fan Xin-hui
中科院分区：
文献类型：
--
作者：
Chen Jian;Yan Wen;Fan Xin-hui
采用X射线衍射仪和电子背散射衍射仪研究了连续铸造工艺生产的冷拔铜丝的织构演变过程，并采用泰勒模型进行了模拟。结果表明，采用传统连铸工艺生产的多晶铜线在拉拔过程中，< 111 >形成了< 100 >双纤维织构，且随着应变的增加，多晶铜线的强度< 111 >和< 100 >抗拉强度均增加。在热型连铸单晶铜拉拔线材中< 100 >，< 111 >由于剪切变形的分布，导致线材在径向沿着方向上存在不均匀的纤维织构分布。相比之下< 100 >，< 111 >拉拔铜线的纤维织构更稳定。实验结果与模拟结果的对比表明，泰勒模型模拟可以较好地分析拉拔铜线织构的演变。
The texture evolution of cold drawing copper wires produced by continuous casting was measured by X-ray diffractometry and electron back-scatter diffractometry, and was simulated using Taylor model. The results show that in the drawn poly-crystal copper wires produced by traditional continuous casting, < 111 > and < 100 > duplex fiber texture forms, and with increasing strain, the intensities of < 111 > and < 100 > increase. In the drawn single-crystal copper wires produced by Ohno continuous casting, < 100 > rotates to < 111 >, and there is inhomogeneous distribution of fiber texture along radial direction of the wires, which is caused by the distribution of shear deformation. Compared with < 100 >, < 111 > fiber texture is more stable in the drawn copper wires. Comparison of the experimental results with the simulated results shows that the simulation by Taylor model can analyze the texture evolution of drawn copper wires.