The characteristics of the relaxation and recrystallization processes in pure tantalum deformed by rolling at room temperature are studied. It is established that at 800°C the recovery processes are activated and nuclei of recrystallization grains appear. After 1000°C, an activation of primary recrystallization is observed, which, after annealing at 1200°C, involves the entire material volume. It is shown that the processes of structural relaxation beginning at 800°C are accompanied by a dramatic decrease in microhardness.
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References
B.A. Wilcox, Refractory Metal Alloys Metallurgy and Technology, Springer, Boston (1968).
F. Haessner, Recrystallization of metallic materials, Riederer-Verlag, Stuttgart (1978).
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Smirnov, I.V., Tolstikhin, V.I., Grinyaev, K.V. et al. Influence of Annealing Temperature on Microstructure Parameters and Microhardness of Tantalum After Deformation by Rolling. Russ Phys J 67, 121–125 (2024). https://doi.org/10.1007/s11182-024-03097-1
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DOI: https://doi.org/10.1007/s11182-024-03097-1