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采用透射电镜(TEM)对稀土铸铁薄膜试样进行了分析研究,球墨和蠕墨经离子轰击后留下的“年轮”状纹理和平行条纹与石墨晶体<0001>方向相互垂直的关系得到了实验证实。通过微区分析还发现球墨内部的角锥体是由许多取向略有差异的微晶所构成。此外,还对石墨晶体的衍衬象中所出现的波纹图等现象进行了分析,认为它们是由于石墨中存在的孪晶所造成的。
The samples of rare earth cast iron were analyzed by transmission electron microscopy (TEM). The relationship between the “ring” texture and the parallel stripes of graphite and nodules left by ion bombardment was perpendicular to the <0001> direction of graphite Experiment confirmed. Micro-area analysis also found that the interior of the pyramids is composed of many crystallites with slightly different crystallographic orientation. In addition, the phenomena of corrugations and the like appearing in the diffraction pattern of graphite crystal are also analyzed, and they are thought to be caused by the twins existing in the graphite.