The polarization curve of the ULC steel with titanium and niobium was measured to determine the suitable electrolytic parameters for preparation of TEM carbon replica samples.

• 测定了一种复合添加钛、铌超低碳钢的极化曲线,选用合适的电流密度和电解时间以碳复型方法萃取钢中的析出相制备透射电镜观察用样品。