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

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 mech...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-01, Vol.292 (1), p.12098
Main Authors: Pan, J P, Tu, S H, Sun, G L, Zhu, X W, Tan, L J, Hu, B
Format: Article
Language:English
Subjects:
Boilers
Creep life
Creep tests
Heat resistant steels
High temperature
Power plants
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Summary: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.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/292/1/012098