On Rolling Workability of Pure Tungsten Single Crystals with (110) [001] and (001) [110] Orientations at Room Temperature∼200°C

On the Deformation and Recrystallization of (001)[110] Single Crystals of Pure Tungsten Rolled at 200°C and Tantalum at 100°C

“…Such a supposition is consistent with the observation on the degree of abnormal deformation in the edge regions of the crystal by the etch-pit method as already reported (12). Figure 2 shows the variation of hardness of W and Ta crystals with rolling reduction, while for W and Ta crystals, respectively, showing the distributions of orientations of recrystallized grains and the rotation axes and angles for the relationships between the recrystallized grains and the rolled matrix.…”

“…The reason for the large widening of the W crystal was explained in detail in a previous report (12). The marked difference in the amount of widening between W and Ta crystals is due to the fact that the tendency of the multiple slip is much stronger for the W crystal than for the Ta crystal at the rolling temperatures used in this study.…”