Recrystallization in iron with silicon subjected to critical deformation

Conclusions

• 1. The recrystallization of Fe+Si after critical degrees of deformation depends on the composition and concentration of nonmetallic phase in the alloy. When the number of inclusions reaches 10¹³ to 10¹⁵ cm⁻³ secondary recrystallization is eliminated from the primary temperature range of 300–350° and occurs at temperatures above the initial solution temperature of the inclusions. In this case it is similar to process of anomalous grain growth. When the number of inclusions is≤10¹² cm⁻³ the process of secondary recrystallization partially overlaps primary recrystallization and has the character of normal grain growth.

• 2. With deformation near the critical degree (4–12%) an increase of the edge component is prevented almost completely at secondary recrystallization temperatures, but the development of this component is facilitated during the course of primary recrystallization (up to 25–30%). The smaller the preceding deformation, the stronger the edge component in primary recrystallization. With increasing deformation in the range of ɛ_cr the orientations close to (100) [011] increase in the annealed samples, which are strain hardened less during deformation.