The expanding curves and continuous cooling transformation curve (dynamic CCT curve) of X60 pipeline steel were obtained by dilatometry and microscopic test under different cooling speed.
利用膨胀法，结合金相法，测定了X60不同冷却速度下连续冷却转变的膨胀曲线，获得了该钢的连续冷却转变曲线（动态CCT曲线）；
The expanding curves and continuous cooling transformation curve (dynamic CCT curve) of X60 pipeline steel were obtained by dilatometry and microscopic test under different cooling speed.
利用膨胀法，结合金相法，测定了X60不同冷却速度下连续冷却转变的膨胀曲线，获得了该钢的连续冷却转变曲线（动态CCT曲线）；
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