본 연구에서는 modified Bridgman 법을 이용하여 순 마그네슘, Mg-1Zn-0.5Y, Mg-0.1Y, and Mg-0.1Ce 합금 단결정을 성공적으로 제조할 수 있었으며, 제조된 결정에 대하여 방위결정, 압축 및 경도시험을 수행하였다. 단결정의 강도와 경도는 방위에 매우 민감한 것을 확인할 수 있었고, 합금원소의 첨가에 의해서도 강도와 가공경화 거동이 영향을 받는 것을 확인하였다.
Single crystals of Magnesium alloys such as pure Mg, Mg-1Zn-0.5Y, Mg-0.1Y, and Mg-0.1Ce alloys were successfully fabricated in this study by employing the modified Bridgman method. To determine the exact orientation of crystals, pole figure measurement using X-ray diffraction were carried out on each single crystal. Hardness and compression tests were conducted followed by subsequent recrysatllization annealing. Recrystallization kinetics of Mg alloy single crystals has been investigated. Fabricated single crystals were cut into rectangular shaped specimen and solution treated at 400℃ for 24 hrs, and then deformed in compression mode by 30% reduction. Annealing treatment for recrystallization has been conducted on these cold-rolled plates at temperatures of 300℃ for various times from 1 to 20 mins. The microstructure observation and hardness measurement conducted on the recrystallized specimens revealed that static recrystallization of ternary alloy single crystal was very slow, while recrystallization behavior of binary alloy single crystals appeared to be very fast.