结果表明：稀土使钢的过冷奥氏体转变曲线右移，在同样冷却速度下，加稀土钢的硬度增加。
The result shows that the RE make CCT curve move towards right and hardness of steel increases at same rate of cooling.
由回火温度与硬度变化曲线证实，残余应力重新分布是与残余奥氏体转变相关联。
According to the tempering temperature and hardness curve, the redistribution of residual stress is associated with the transformation of residual austenite.
变形使CCT曲线向左上方移动，提高了奥氏体冷却转变开始温度，随冷速加大提高得越多。
The deformation moves CCT curve to left and up direction. the cooling transformation initiating temperature of austenite increases more with the increase of cooling rate.
变形使CCT曲线向左上方移动，提高了奥氏体冷却转变开始温度，随冷速加大提高得越多。
The deformation moves CCT curve to left and up direction. the cooling transformation initiating temperature of austenite increases more with the increase of cooling rate.
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