Figure 4: Deformation micro-mechanisms in the grain-refined iHEA with increasing tensile deformation at room temperature. | Scientific Reports

Figure 4: Deformation micro-mechanisms in the grain-refined iHEA with increasing tensile deformation at room temperature.

From: Interstitial atoms enable joint twinning and transformation induced plasticity in strong and ductile high-entropy alloys

Figure 4

(a) EBSD phase maps revealing deformation-induced martensitic transformation as a function of deformation; the local strain (εloc) levels of 10%, 40%, 60% and 90% correspond to the early, medium and late uniform deformation and post-necking stages, respectively. (b) ECCI analysis revealing deformation induced twins, stacking faults and dislocations in the f.c.c. phase; SF and DS refer to stacking faults and dislocations, respectively. (c) ECCI and EDS reveal the presence of carbides enriched with Cr in the microstructure; note that the EDS map (right side) shows a somewhat larger particle size due to image drift during high-magnification long-time EDS mapping; the EDS map of Cr is provided rather than that of C, because EDS has lower resolution on C than on metallic elements.

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