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新型压力容器用钢CCT曲线的测定
Measurement of CCT Curve of New Steel Used for Pressure Vessel
【摘要】 利用Formastor-F热膨胀仪测定了新型压力容器用钢过冷奥氏体连续冷却C曲线即CCT曲线。结果表明,在冷却速度为1℃/min～10℃/min时可获得F+P;5℃/min～1℃/s时可获得F+P+B+M(少量);1℃/s～2℃/s时可获得F+P+M;2℃/s～50℃/s时可获得F+M。
【Abstract】 Curve of continuous cooling transformation(CCT) of new steel used for pressure vessel was measured by using formastor thermal dilatometer.The results show that F+P are obtained with the cooling rate of 1℃/min～10℃/min;F+P+B and little M are obtained with the cooling rate of 5℃/min ～1℃/s;F+P+M are obtained with the cooling rate of 1℃/s ～2℃/s and F+M are obtained with the cooling rate of 2℃/s ～50℃/s respectively.
【关键词】 压力容器用钢；
奥氏体化；
CCT曲线；
组织；
【Key words】 steel used for pressure vessel； austenization； curve of CCT； microstructure；
【Key words】 steel used for pressure vessel； austenization； curve of CCT； microstructure；
- 【文献出处】 热加工工艺 ,Hot Working Technology , 编辑部邮箱 ,2005年11期
- 【分类号】TH49;
- 【被引频次】10
- 【下载频次】316