Abstract

The paper determines values of the deformation threshold necessary for the initiation and development of dynamic recrystallization in the investigated deformation temperature and strain rate. Analysis of diagrams shows that the deformation resistance increases with decreasing of temperature, while a weak peak is observed at temperature 1000–1200°C, when dynamic recrystallization starts. The structure of high-strength corrosion-resistant nitrogen-containing austenitic steel 04Kh20N6G11M2AFB after hot deformation with strain rate 0.1, 1.0 and 10 s-1 in the temperature range 900–1200°С has been studied by EBSD analysis and transmission electron microscopy.

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