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发明公开
CN110118779A 一种含铬耐热钢的枝晶腐蚀剂及显示方法 无效 - 撤回

一种含铬耐热钢的枝晶腐蚀剂及显示方法
摘要：
本发明提供了一种含铬耐热钢的枝晶腐蚀剂及显示方法，包括耐热钢金相试样进行机械研磨、机械抛光、枝晶腐蚀、冲洗烘干和显微镜观察等。本发明的金相腐蚀剂为饱和苦味酸水溶液和氯化铁溶剂的混合溶液，所述金相腐蚀剂由饱和苦味酸水溶液、质量百分比为20％～30％的氯化铁水溶剂按照体积比例为10：1，配置总体积为100ml的混合液，再加上十二烷基苯磺酸钠配置而成。采用本发明的枝晶组织显示方法可清晰地显示出含9％铬的耐热钢金相试样的枝晶组织，进而利于测量枝晶的生长长度。
摘要（英）：

The invention provides a dendritic crystal corrosive of heat-resistant steel containing chromium, and a display method. The display method comprises steps, such as performing mechanical grinding for aheat-resistant steel metallographic specimen, mechanical polishing, dendritic crystal corrosion, washing and baking to dry and observing with a microscope. The metallographic corrosive provided by the invention is mixed solution of saturated picric acid water solution and ferric chloride solvent, and the metallographic corrosive is prepared through preparing totally 100ml of mixed solution of thesaturated picric acid water solution and 20%-30% by mass of ferric chloride solvent according to volume ratio of 10:1, and further adding sodium dodecyl benzene sulfonate. With the dendritic crystaltissue display method provided by the invention can clearly display dendritic crystal tissue of the heat-resistant steel metallographic specimen containing 9% of chromium, and consequently, is beneficial for measurement of growth length of the dendritic crystal.

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