Why can I only observe precipitates in martensitic parts of my austenitic martensitic microstructure?

28 January 2020 0 2K Report

In our research project I'm analyzing aluminum alloyed stainless steel (Fe - 10.5wt.% Cr - 15wt.%Ni - 3wt.% Al). After quenching and partitioning (550°C for 15 min) I get martensite and austenite. I can see precipitates ((Ni,Fe)Al with crystal structure B2 and average size of

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