Enhanced Mechanical Properties of Mg-6Sn-3Al-1Zn Alloy with Bimodal Grain Size Disturbed in the Microstructure Uniformly through Changing the Rolling Temperature

Figure 11

The TEM bright field image (a), selected area electron diffraction (b, c), and the TEM dark field image (d) of the alloy rolled at 400°C. <c + a> dislocations were identified in a grain based on the invisibility criterion; <a> dislocations were also found in their vicinity. Two-beam dark-field images were taken along the [2-1-10] zone axis under  = (01-10) and  = (0002), respectively.

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