Research on creep behavior of Cr25Ni35Nb centrifugally cast steel based on the modified θprojection method

摘要：

According to the creep date under different temperature and stress,the creep curves of Cr25Ni35Nb furnace tube material were fitted by using modified θ projection concept.The mathematical expressions of the constants θ,and the creep constitutive equation of Cr25Ni35Nb steel under arbitrary temperature and stress were established.The predicted minimum creep strain rates were also discussed.Then the creep curve at 950℃ and 18MPa was predicted.The predicted creep curve shows a good agreement with the experimental data.

关键词： Modified θ projection concept Cr25Ni35Nb steel Creep curve High temperature

作者: Jianjie Liu Yong Jiang Jianming Gong Kee Bong Yoon

作者单位: College of Mechanical and Power Engineering,Nanjing University of Technology,Nanjing 210009,China School of Mechanical Engineering,Chung-ang University,Seoul 156-756,Korea

会议类型: 国际会议

会议名称: 国际断裂力学2009年会

会议地点: 成都

会议语种:英文

页码: 213-217

在线出版日期: 2009-10-16（万方平台首次上网日期，不代表论文的发表时间）