Figure 6 Cross-sectional TEM results of compressive [100] Mo in (a), (b), (c) and (d).
To compare the orientation on the mechanical responses, TEM results for deformed [100] and [110] Mo-14Re are presented in Figure 7 with beam direction [110]. Only one group of parallel slips are signed in Figure 7b. The region including slips is enlarged in Figure 7d. Although Figure 7d shows contrast, no obvious element segregation occurs in the boundary. Severe shear instability is observed in [110] Mo-14Re in Figure 7f. Shear offset in the free surface cumulates to width ~ 1μm via one group of bands slipping. Although another group of slip bands extend from left side, as shown in region C in Figure 7f, two groups slip bands extend individually. So, the deformations in [100] and [110] Mo-14Re are both mainly dominated by slipping in one group of parallel bands, although slip bands with other directions are activated in [110] Mo-14Re. As above-mentioned, the plastic deformation in [100] Mo-42Re is dominated by tangled slip bands, which suggests plasticity is enhanced as Re rises.