Fig. 2: Hierarchical architecture of the ultrastrong and ductile steel welds. | Nature Communications

Fig. 2: Hierarchical architecture of the ultrastrong and ductile steel welds.

From: Ultrastrong and ductile steel welds achieved by fine interlocking microstructures with film-like retained austenite

Fig. 2

a, b EBSD IPF and phase map of the 1.0 GPa H-Ni steel weld. c, d EBSD IPF and phase map of the 1.0 GPa H-Nb steel weld. e, f TEM image and phase map of d. g, h STEM image and SADP analyses for film-like retained austenite of d. i Effective grain size and fraction of retained austenite in the welds measured from the EBSD analyses.

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