Ultra-low carbon steel metallographic corrosive agent and display method of metallographic structure
A technology of ultra-low carbon steel and corrosive agent, which is applied in the preparation of test samples, measuring devices, and material analysis by optical means, etc., can solve the problems of difficult corrosion, high production cost, poor operation controllability, etc. Simple, easy to operate, and the effect of short corrosion time
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[0013] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.
[0014] A metallographic etchant for ultra-low carbon steel provided by the invention is formed by mixing dehydrated alcohol, nitric acid and glacial acetic acid, the volume content of dehydrated alcohol accounts for 90%, the volume content of nitric acid accounts for 5%, and the remainder is glacial acetic acid, wherein, The mass percentage concentration of absolute ethanol is 99.5%, the mass percentage concentration of nitric acid is 65-68%, and the mass percentage concentration of glacial acetic acid is 99.5%. The corrosive agent provided by the present invention is obtained by mixing the three substances evenly.
[0015] The method of displaying the metallographic structure of ultra-low carbon steel is a one-step corrosion method, which...
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