塑性變形したAl單結晶の異常X線廻折と異常硬化現象について

抄録

Al single crystals were compressed or rolled 10-30% at room temperature and annealed at 250°C and measured their hardness by a micro-Vickers hardness tester.
Hardness does not decrease monotonously with the time of annealing but shows some anomalous hardening effects. Variation of the lattice constant measured by back reflection of Cu K_α shows some irregularities and closely related to those of hardness, the maximum of the deviation from the lattice constant of well annealed Al being coincided to the peak of hardness.
X-ray diffraction patterns show some anomalies, such as (i) double diffraction by (111)and (242), (ii) double diffraction by (113) and (420), (iii) K_α3 line by (333). All these patterns appear near that of (333).