Abstract
The effect of Si addition on the interaction between recrystallization and precipitation was investigated in terms of the no-recrystallization temperature (T nr ) on three microalloyed steels containing about 0.035 mass% Nb. The T nr was measured using torsion testing over the Si concentration range from 0.01 to 0.48 mass%. It was observed that the T nr increased with Si level, but appeared to saturate at long interpass times. In addition, high strains reduced the influence of Si on the T nr . This behaviour is attributed to the acceleration of Nb(C, N) precipitation by the addition of Si.
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