High-temperature creep properties and life predictions for T91 and T92 steels

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Pan, J.P.^1 ; Tu, S.H.^1 ; Sun, G.L.^2 ; Zhu, X.W.^1 ; Tan, L.J.^3 ; Hu, B.^4

Jiaxing Special Equipment Inspection Institute, Jiaxing

314051, China^1

Jiaxing Nanhu District Market Supervision Administration, Jiaxing

314001, China^2

Shanghai Jiao Tong University, Shanghai

200240, China^3

Special Equipment Inspection and Research Institute, Beijing

100029, China^4

关键词: Creep life;    Creep mechanism;    Creep-rupture data;    Heat-resistant steel;    High temperature and high pressure;    High temperature creep;    Life predictions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012098/pdf
DOI  :  10.1088/1757-899X/292/1/012098

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

9-11%Cr heat-resistant steels are widely used in high-temperature and high-pressure boilers of advanced power plants. In the current paper, high-temperature creep behaviors of T91 and T92 steels have been investigated. Creep tests were performed for both steels at varied temperatures. The creep mechanisms of T91 and T92 steels were elucidated by analyzing the creep rupture data of the two steels. In addition, Manson-Haferd model was employed to predict the creep life of T91 and T92 steels, the results of which indicate that the Manson-Haferd model works well for the two steels.