rams210405 Posted June 26, 2012 Share Posted June 26, 2012 I am trying to dissolve the nickel-based alloys Inconel 617 and Haynes 230 in order to analyze the precipitates with XRD. I already tried the Berzelius solution which is 47.7 g of copper (II) chloride, 41.7 g of potassium chloride, 2.9 g of tartaric acid, 275 ml of distilled water, and 22.4 ml of hydrochloric acid. While this worked for several steels it had almost no effect on the nickel alloys. If you have any ideas on what might work please help! Link to comment Share on other sites More sharing options...
doG Posted June 26, 2012 Share Posted June 26, 2012 Maybe aqua regia or hot nitric acid... Link to comment Share on other sites More sharing options...
Enthalpy Posted June 27, 2012 Share Posted June 27, 2012 Nickel itself isn't the worst. Inconel contains 20...24% of Chromium to make it corrosion-resistent through a CrO2 layer. Link to comment Share on other sites More sharing options...
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