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奥-贝球墨铸铁具有良好的综合性能。作者采用低速切割、机械磨抛和最终的低角度离子减薄的方法成功地制备了供透射电镜观察用的球铁薄膜,电子衍射和相应的衍射像表明,球铁经900℃奥氏体化一小时,并于370—380℃盐浴中等温一小时三十分后,其形态为板条状贝氏体铁素体,其间有奥氏体,未发现渗碳体存在,经X射线衍射测定残留奥氏体量为30％。
Austria - Bay ductile iron has a good overall performance. The author successfully prepared the ductile iron film for transmission electron microscopy by low speed cutting, mechanical grinding and final low angle ion reduction. The electron diffraction and the corresponding diffraction images show that the ductile iron is austenitized at 900 ℃ One hour, and in the 370-380 ℃ salt bath for an hour and a half after the temperature, the form of lath bainitic ferrite, with austenite in between, did not find the presence of cementite, X-ray diffraction The amount of retained austenite was determined to be 30%.