How can we do colour metallography on 9Cr-1Mo steel (P91)?

25 January 2014 1 3K Report

9Cr-1Mo is a matensitic steel. With the help of colour metallography can we see delta ferrite and other carbide phases in this material?

Ravi Ananth

Please post some of your current data for this material. What is the typical grain size and what is the expected size of "delta ferrite and other carbide phases"?

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