借助于金相显微镜和扫描电镜,探讨了bcc金属中蚀坑形状和晶粒位向的关系。晶粒的位向采用扫描电镜电子通道花样技术确定,实验结果表示在单位赤面投影三角形中。 采用矢量分析和坐标变换方法,推导了一组描述蚀坑形状和晶粒位向的关系式,并用理论计算数据制成图表。应用这些图表,可以迅速地确定晶粒位向。 因为蚀坑形状是以方位角(θ,φ)的连续函数来描述,故晶粒位向的分析结果可直接表示在单位赤面投影三角形中,且易于确定晶界的变换矩阵。 应用本文的蚀坑分析技术,曾对一些冶金问题进行了探讨。
By means of metallographic microscope and SEM the correlation between the feature of etch-pits and the grain orientations in bcc metals has been investigated. The grain orientations were determined by ECP in SEM and illustrated in a unit stereograph triangle. A series of their relational expressions was deduced with aid of vector analysis and coordinate transformation method. Some tables and charts, on which the grain orientation can be rapidly consulted, have been constructed by collection of the theoretically computed data. The analyzed results of the grain orientations may be directly expressed in a unit stereograph triangle and also easily determined on the transformation matrix of the grain boundaries, because the shapes of etch-pits are described by a continuous function of azimuth angle (θ, φ). Certain metallurgical problems have been discussed by the application of this analytical technique.
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| [6] | Matsuda, S. |
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