초록

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Abstract ▼ AI-Helper

To investigate the effect of Sn on the recrystallization of Zr-based alloys. Zr-xSn (x=0.5, 0.8, 1.5, 2.0wt.%) alloys were manufactured to be the sheets through the defined manufacturing procedure. The specimens were annealed at $300^{\circ}C$ to $800^{\circ}C$ for 1 hour. The ...

To investigate the effect of Sn on the recrystallization of Zr-based alloys. Zr-xSn (x=0.5, 0.8, 1.5, 2.0wt.%) alloys were manufactured to be the sheets through the defined manufacturing procedure. The specimens were annealed at $300^{\circ}C$ to $800^{\circ}C$ for 1 hour. The hardness, microstructure and precipitate of the alloys with the annealing temperature were investigated by using micro- knoop hardness tester, optical microscope(O/M) and transmission electron microscope(TEM), respectively. The cold-worked Zr-xSn alloys showed the typical behavior of the recovery. recrystallization, and grain growth. The recrystallization of Zr-xSn alloys occurred between $500^{\circ}C$ and $700^{\circ}C$. As the Sn content increased. the recrystallization temperature of the cold-worked alloys increased but their grain sizes after recrystallization decreased. It is suggested that the recrystallization of the cold- worked Zr alloys be occurred by the subgrain coalescence and growth mechanism.