Abstract
The size distributions of different precipitates have been determined for the quantification of precipitates present in the cast martensitic steel G-X12CrMoWVNbN 10-1-1. Direct and indirect methods have been used to discriminate the different precipitates. The former was carried out by images of precipitates from STEM connecting with EDX analysis, and the latter from TEM. The study was performed on the replicas with precipitates which were extracted from the buck steel. Results gained from direct determination are compared with results from indirect determination. It is shown that the total size distributions are in good agreement for both direct and indirect determination in this type of steel. The discrimination and quantification of different precipitates seem to be difficult for indirect method because of uncertainty concerning the quantitative determination of precipitate parameters.
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