以一种冷轧Nb - IF钢为研究对象,研究了不同加热速率下退火板的微观组织和织构特征.结果表明:当加热速率由10℃/s增加到150℃/s时,再结晶晶粒平均直径由16.72 μm细化到13.8 μm;当加热速率高于100℃/s时,平均晶粒直径变化趋于平缓.试验钢完全再结晶晶粒以大角晶界为主,随加热速率变化,其含量在81.3％～86.9％范围内波动,重位点阵(CSL)含量在34.1％～44.5％之间波动.在快速加热退火和普通加热退火条件下,试验钢均可获得强烈的γ织构,强点密度在f(g)=9.01～ 10.42范围内.
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