Fig. 5 | Scientific Reports

Fig. 5

From: On the nature of nano twin-induced shear band formation in a dispersion strengthened copper alloy under micro-mechanical loading

Fig. 5

(a) High-resolution TEM micrographs of the nano twins formed within the shear bands and the matrix. The TEM micrograph shows the presence of nano-sized precipitate particles within the matrix. (a)-2 and (a)-3 are high-magnification TEM micrographs from different regions of (a)-1, (b) EDS elemental maps of the nano-sized precipitates show that the particles have the same composition as the micron-size particles. The figure shows that the nano-sized precipitates may act as obstacles to dislocation motion, thereby increasing the pile-up of dislocations and further assisting in the formation of nano twins within the shear bands.

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