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采用光学显微镜(OM)、X射线四环衍射(XRD)、电子背散射衍射(EBSD)技术分析研究了形变细化晶粒、润滑轧制对Ni-9.3 at%W(Ni9.3W)合金基带立方织构形成的影响。结果表明,采用形变细化晶粒的方法能有效提高Ni9.3W合金基带的立方织构含量,并且随着初始形变量的增加,晶粒细化程度增大,立方织构含量增高,采用优化的形变细化晶粒工艺使得Ni9.3W合金基带立方织构含量提高了9.8%。另外,增加形变细化晶粒后的轧制总变形量,立方织构含量进一步提升了24.7%。相比非润滑轧制而言,采用润滑轧制,轧制织构中获得了较多的S取向与Copper取向,经再结晶退火后,润滑轧制基带的立方织构含量比非润滑轧制基带的立方织构含量高9.6%,达到了86.7%(<15°),而且孪晶界数量、小角度晶界含量均要优于非润滑轧制,说明润滑轧制对立方织构形成有着积极的影响。
The microstructure of Ni-9.3 at% W (Ni9.3W) alloy substrate was studied by optical microscope (OM), X-ray diffraction and electron backscatter diffraction (EBSD) Effect of cubic texture formation. The results show that the cubic grain structure of Ni9.3W alloy can be effectively improved by using the grain refinement method. With the increase of initial deformation, the grain refinement degree increases and the cubic texture content increases. The deformation and grain refinement process increased the cubic texture of Ni9.3W alloy by 9.8%. In addition, by increasing the total amount of deformation after deformation and grain refinement, the cubic texture content is further increased by 24.7%. Compared with non-lubrication rolling, more S orientation and orientation of copper were obtained by lubrication rolling and rolling, and the cubic texture content of lubrication rolling base after recrystallization annealing was higher than that of non-lubrication rolling The cubic texture content of the matrix is 9.6% higher, reaching 86.7% (<15 °), and the amount of twin boundaries and the small-angle grain boundaries are better than those of non-lubrication rolling. Positive effect.