研究了热镀锌连续退火工艺对NbTiIF钢性能及再结晶织构的影响。利用Gleeble3800热模拟试验机对带钢在80 m/min和120 m/min两种带速条件下的连续退火工艺进行了模拟，采用780、820、860、900 ℃ 4种模拟温度。用X射线衍射仪、透射电子显微镜、光学显微镜、电子拉伸试验机对样品的再结晶织构、组织、第二相粒子及力学性能进行了检测和分析。结果表明，退火工艺直接影响退火试样的力学性能、第二相粒子的形态、大小及分布和退火织构。经综合分析，给出了NbTiIF钢最佳连续退火制度。
The influence of continuous annealing on the properties and recrystallization texture of NbTiIF steel was studied. The hot simulation of continuous annealing was performed on Gleeble3800.The simulated line speed was 80 m/min and 120 m/min, the simulated annealing temperature was 780,820,860 and 900 ℃. Xray and TEM were used to examine the annealed samples. It was proved that there is a close relationship between the mechanical properties, the second phase’s shape, recrystallization texture and the continuous annealing technology. The optimum continuous annealing schedule was obtained.
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