采用修正θ投影法预测Cr25Ni35Nb炉管钢的蠕变性能
Prediction of Creep Properties for Cr25Ni35Nb Furnace Tube Steel by Modified θ Projection Method
摘 要
在不同温度和不同应力下对Cr25Ni35Nb炉管钢进行了蠕变试验; 并采用修正后的θ投影法对该钢的蠕变曲线进行了拟合, 得到了蠕变方程中参数θi的数学表达式, 建立了该钢在任意温度和应力条件下的蠕变曲线方程, 并据此预测了950 ℃、18 MPa下该钢的蠕变曲线。结果表明: 预测曲线和试验曲线吻合较好。
Cr25Ni35Nb钢
蠕变性能
预测
θ projection method
Cr25Ni35Nb steel
creep property
prediction
Abstract
The creep tests on the Cr25Ni35Nb furnace tube steel were performed under different temperatures and stresses, the creep curves for the steel were fitted by modified θ projection method. The mathematical expressions of the parameter θi were built and the creep curve equation of the steel under arbitrary temperatures and stresses was established. Then the creep curve at 950 ℃ and 18 MPa was predicted. The results indicate that the predicted creep curve showed a good agreement with the experimental one.
中图分类号 TG113.25
所属栏目
基金项目 国家“863”计划资助项目(2007AA04Z407); 国家自然科学基金资助项目(50775107)
收稿日期 2009/12/17
修改稿日期 2010/9/12
网络出版日期
作者单位点击查看
备注刘建杰(1985-), 男, 江苏宿迁人, 硕士研究生。
引用该论文: LIU Jian-jie,GONG Jian-ming,JIANG Yong,SHEN Li-min,GENG Lu-yang,KEE Bong-yoon. Prediction of Creep Properties for Cr25Ni35Nb Furnace Tube Steel by Modified θ Projection Method[J]. Materials for mechancial engineering, 2011, 35(1): 89～92
刘建杰,巩建鸣,姜勇,沈利民,耿鲁阳,尹基奉. 采用修正θ投影法预测Cr25Ni35Nb炉管钢的蠕变性能[J]. 机械工程材料, 2011, 35(1): 89～92
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参考文献
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【2】CAN B J. Remaining creep life estimation by strain assessment on plant[J].International Journal of Pressure Vessels and Piping, 1982, 10(1): 11-30.
【3】EVANS R W, WILSHIRE B. Creep of metals and alloys[M].London: The Institute of Metals, 1985: 197.
【4】BROWN S G R, EVANS R W, WILSHIRE B. A comparison of extrapolation techniques for long-term creep strain and creep life prediction based on equations designed to represent creep curve shape[J].International Journal of Pressure Vessels and Piping, 1986, 24(3): 251-268.
【5】EVANS R W, PARKER J D, WILSHIRE B. Recent advanced in creep and fracture of engineering materials and structure[M].Swansea: Pineridge Press, 1982: 135.
【6】WOLF H, MATHEWS M D, MANNAN S L. Prediction of creep parameters of type 316 stainless steel under service conditions using theta projection concept[J].Mater Sci Eng A, 1992, 159: 199-204.
【7】KIM Woo-gon, YIN Song-nan, KIM Yong-wan, et al. Creep characterization of a Ni-based Hastelloy-X alloy by using theta projection method[J].Engineering Fracture Mechanics, 2008, 75: 4985-4995.
【8】胡南昌, 尚丽娟, 田素贵, 等.单晶镍基高温合金蠕变曲线的预测[J].沈阳工业大学学报, 2006, 28(5): 490-494.
【9】杨王月, 李志文.θ法预测12Cr1MoV钢主蒸汽管道材料剩余寿命[J].金属学报, 1999, 35(7): 721-725.
【10】OIKAWA H, MARUYAMA K. Prediction of long-term creep curves[J ].Fusion Engineering and Design, 1992, 19(4): 321-328.
【11】郭宏. DD3单晶高温合金疲劳蠕变交互作用断裂机理与形变规律研究[D].北京: 北京科技大学, 1995.
【12】EVANS R W, BEDEN I, WILSHIRE B. Creep and fracture of engineering materials and structure[M].Swansea: Pineridge Press, 1984: 1277.
【13】CHEN G L, GUO H, SUN J Y, et al. Extrapolation model of high temperature creep for 12Cr1MoV steel[J].J Univ Sci Tech, 1997, 19: 157-160.
【2】CAN B J. Remaining creep life estimation by strain assessment on plant[J].International Journal of Pressure Vessels and Piping, 1982, 10(1): 11-30.
【3】EVANS R W, WILSHIRE B. Creep of metals and alloys[M].London: The Institute of Metals, 1985: 197.
【4】BROWN S G R, EVANS R W, WILSHIRE B. A comparison of extrapolation techniques for long-term creep strain and creep life prediction based on equations designed to represent creep curve shape[J].International Journal of Pressure Vessels and Piping, 1986, 24(3): 251-268.
【5】EVANS R W, PARKER J D, WILSHIRE B. Recent advanced in creep and fracture of engineering materials and structure[M].Swansea: Pineridge Press, 1982: 135.
【6】WOLF H, MATHEWS M D, MANNAN S L. Prediction of creep parameters of type 316 stainless steel under service conditions using theta projection concept[J].Mater Sci Eng A, 1992, 159: 199-204.
【7】KIM Woo-gon, YIN Song-nan, KIM Yong-wan, et al. Creep characterization of a Ni-based Hastelloy-X alloy by using theta projection method[J].Engineering Fracture Mechanics, 2008, 75: 4985-4995.
【8】胡南昌, 尚丽娟, 田素贵, 等.单晶镍基高温合金蠕变曲线的预测[J].沈阳工业大学学报, 2006, 28(5): 490-494.
【9】杨王月, 李志文.θ法预测12Cr1MoV钢主蒸汽管道材料剩余寿命[J].金属学报, 1999, 35(7): 721-725.
【10】OIKAWA H, MARUYAMA K. Prediction of long-term creep curves[J ].Fusion Engineering and Design, 1992, 19(4): 321-328.
【11】郭宏. DD3单晶高温合金疲劳蠕变交互作用断裂机理与形变规律研究[D].北京: 北京科技大学, 1995.
【12】EVANS R W, BEDEN I, WILSHIRE B. Creep and fracture of engineering materials and structure[M].Swansea: Pineridge Press, 1984: 1277.
【13】CHEN G L, GUO H, SUN J Y, et al. Extrapolation model of high temperature creep for 12Cr1MoV steel[J].J Univ Sci Tech, 1997, 19: 157-160.
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