Abstract
The effect of impurities and of slight deformations as factors modifying the kinetics of normal grain growth after primary recrystallization in pure iron is investigated. Samples of pure iron and Armco iron, each with or without a content of precipitated oxides, were examined.
Inclusions inhibit grain growth up to high temperatures, whilst the influence of strain depends on its amount: very low deformations (∼2%) generally block grain growth; for deformations around 5%, secondary recrystallization takes place; higher deformations (∼10%) accelerate the early stages of growth, leading to not very large final grain dimensions. 2.0% elongation has been found to be, in our conditions, the critical strain limit for secondary recrystallization.
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Antonione, C., Gatta, G.D., Riontino, G. et al. Grain growth and secondary recrystallization in iron. J Mater Sci 8, 1–10 (1973). https://doi.org/10.1007/BF00755577
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DOI: https://doi.org/10.1007/BF00755577