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机械抛光易使试样表面产生变形层、划痕,且夹杂物周围常产生拖尾现象。这给研究钢中非金属夹杂物造成了困难。本文采用先机械抛光后电锯抛光的方法,在最佳电解抛光规范下,电解抛光试样表面。在电解抛光过程中因基体优先腐蚀,使夹杂物凸出于基体,所以夹杂物轮廓清晰,与基体有鲜明的对比度,同时克服了单纯机械抛光所带来的疵病。
Mechanical polishing easy to make the sample surface deformation layer, scratches, and inclusions often produce tailing phenomenon. This has caused difficulties in studying non-metallic inclusions in steel. In this paper, the first mechanical polishing after sawing method, the best electrolytic polishing specification, the electrolytic polishing the surface of the sample. In the electrolytic polishing process due to matrix corrosion priority, so that inclusions protruding in the matrix, so the contours of inclusions clear, with a clear contrast with the substrate, while overcoming the simple mechanical polishing defects.