Grain Size in Martensitic Steel
One martensitic stainless steel image is submitted for analysis. The absence of clear grain boundaries makes martensitic structures difficult to segment using traditional threshold-based methods. A machine-learning algorithm specifically developed for martensitic steel allows a reproducible one-step detection.
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Figure 1. Image of martensitic stainless steel at 100X.
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Figure 2. Grain boundaries are detected using the Martensitic algorithm prior to measurement.
CLEMEX SOLUTION FOR MARTENSITIC GRAINS
Reproducible detection and measurement of grain size as per ASTM E112 was performed using Clemex Vision image analysis software calibrated with a NIST-traceable stage micrometer.