ANALYSIS OF BANDED STRUCTURES IN DUAL-PHASE STEELS
One steel sample showing banding dual phase structure is submitted for analysis. Detection and measurement of pearlitic-ferritic phases as well as ASTM E112 grain size was performed using a machine-learning algorithm specifically designed for dual-phase steels. This method greatly simplifies segmentation and is therefore more efficient especially on a large sample.
Figure 1. Banded dual-phase structure viewed at 200X.
Figure 2. Ferrite and pearlite automatically detected in red and green prior to area percent measurement.
Figure 2. Grain boundaries are detected using the Ferrite-pearlite algorithm prior to ASTM E112 measurement.