粗大結晶アルミニウムの衝撃変形について
1969 年 18 巻 195 号 p. 1146-1151
詳細
1969 年 18 巻 195 号 p. 1146-1151
On the impact defomation of metals, several studies have hitherto been reported.
In this study, the rotation of crystals and Laue asterisms caused by the application of static or impact loads to the coarse grained specimens of aluminium were observed by the Laue method.
The experiment was carried out on three sorts of crystals whose tension axes were nearly in the [110], [001] and [111] directions. On the other hand, shear strains in the slip plane [111] and rotations of slip direction [101] were calculated in both cases of static and impact loads.
The experimental result obtained may be summarized as follows. In each case of the crystal orientations, the rotation of crystals was larger in the static than in the impact loading. In both cases of the static and the impact loadings, the change of angle between the tension axis and the [112] direction was at the minimum with the [111] crystal. On the other hand, the result of calculation showed that the increase in shear strains was most remarkable in the [111] crystal in loadings. The Laue asterisms produced by the impact loading were more pronounced than those both generated by the static loading.
