对钛微合金化TRIP钢进行连续冷却转变曲线的测定,分析轧制与冷却工艺对其组织与性能的影响.结果表明:实验钢的奥氏体/铁素体、奥氏体/马氏体相变点分别在500～650℃和450℃左右;组织由铁素体/贝氏体及少量残余奥氏体组成;随着终轧温度的升高,实验钢的屈服强度和抗拉强度有所降低;随着空冷结束温度的降低,实验钢的屈服强度降低;当终轧温度和空冷结束温度分别为796℃和722℃时,实验钢的屈服强度,抗拉强度和强塑积分别为661,888MPa和25042MPa·％,其对应组织为细小的铁素体及板条贝氏体,铁素体基体上存在大量细小的析出物.
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