Figure 5.

The SEM micrographs at different temperatures of: (a–c) $\dot{\epsilon }=0.01 {\mathrm{s}}^{-1}$ and (d–f) $\dot{\epsilon }=0.1 {\mathrm{s}}^{-1}$. Here, the micrographs of (b,c) and (e,f) are the high-magnification analysis results of microstructure in the white box region of (a) and (d), respectively.