ETCHANT FOR MICROSTRUCTURE ANALYSIS FOR INTERSTITIAL FREE STEEL

摘要

One corrosive agent of the microscopic examination for gapless atomic steel is arranged to improve measurement reliability by effectively preventing terrible cereal and step corrosion, etc., so that wrong generation is prevented, when analyzing grain size and measuring microstructure. One corrosive agent of the microscopic examination for gapless atomic steel includes by carbon weight less than 0.05%. The corrosive agent of microscopic examination for gapless atomic steel is by addition 0.The composition that the one of 1 to 2 ml hydrochloric acid to 100 ml, mono- mixed solution prepares comprising 1 to 5 g picric acid, the balance of 3 to 5 ml nitric acid and methanol or ethyl alcohol.