Metallurgical reasons and mechanical consequences of incomplete recrystallization

incomplete recrystallization of cold worked steels reduces quality in terms of strength, elongation to fracture, plastic anisotropy (e.g. r-value) and appearance. it is particularly observed in low-carbon steels, in ferritic stainless steels, in the ferritic phase of duplex steels, and in iron-silic on transformer steels. The report reviews recent models describing the processes of nucleation and growth during primary static recrystallization. In this context, the major metallurgical reasons and technical consequences of incomplete recrystalli zation are pointed out. Furthermore, it is shown that the consequences of i ncomplete recrystallization can mostly be ascribed to the subgrain structur e of steels These models include details of technical relevance as far as the deformati on structure is concerned, thus leading to a better understanding of recrys tallization. This allows the derivation of improved prediction methods for the calculation of recrystallization in steels.