本文通过试验表明,化学抛光不仅适用于一些软金属,而且还适用于特种性能的铸铁,如高铬耐磨铸铁和锰系球墨抗磨铸铁。化学抛光能清晰地显示出试样内部不同的显微组织形态。本文还阐明了化学抛光的适用范围,总结了化学抛光的优点,指出化学抛光是一种有发展前途,值得推广使用的方法。 In this paper, experiments show that chemical polishing is not only suitable for some soft metals, but also for special properties of cast iron, such as high chromium wear-resistant cast iron and manganese-based ductile iron. Chemical polishing can clearly show the different microstructures within the sample. This article also clarifies the scope of chemical polishing, summarizes the advantages of chemical polishing, chemical polishing is a promising and worth promoting the use of methods.