亞鉛の粗大結晶への成長

概要

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The processes that occur during the annealing of deformed crystal-line zinc are usually classified in four groups: recovery which involves polygonization, primary recrystallization, grain growth, and secondary recrystallization or coarsening. It is the main purpose of this paper to discuss the fourth type which has only recently been studied systematically in face-centred cubic metals, and to explore its connection with others, particularly with primary recrystallization. The discussion centres largely on the process from primary recrystallized grains to non-uniform coarsed grains which consist in the selective growth of a few grains only, as distinct from uniform coarsening and the experimental results are as follows. The log D-log t curve in the high temperature annealing of four nine zinc sheets is similar to it in face-centred cubic metals, but the texture of zinc coarsed grains is hardly different from the primary recrystallization texture. However, sub-grains are found at the incubation period of secondary recrystallization, and this may mean the imperfect elimination of internal strains by primary recrystallization.
宇宙航空研究開発機構の論文
1953-07-20