Abstract
Due to the good combination of high temperature strength and manufacturing performance, 10%Cr steel has been widely used as the material of 1000MW ultra-supercritical turbine HP/IP rotors in China. In addition to creep strength, good low cycle fatigue resistance is needed for rotor’s design and service safety because high cyclic stresses are often produced during start-stop and variable load operations of turbine. In this paper, low cycle fatigue experiments of 12Cr10Mo1W1NiVNbN steel, which is a domestic IP rotor steel used in ultra-supercritical turbines, were carried out under constant strain condition at room temperature and 873K. The cyclic stress-strain relationship and strain-life curve were established using Ramberg-Osgood and Manson-Coffin equations, respectively. The transition fatigue life of the material was also obtained, over which the elastic strain dominates the fatigue life and under which the plastic strain does. Finally, the low cycle fatigue property of the current steel is compared with that of the German rotor materials reported in the literatures.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Wang Zhao, Chen Jian, Ren Yanjie, et al., “Application of immune algorithm in the low-cycle fatigue crack growth rate of steam turbine rotor,” Turbine Technology, 51(1)(2009), 11–13.
Rauch M., Roos E., “Life assessment of multiaxially cyclic loaded turbine components,” Fatigue and Fracture of Engineering Materials and Structures, 6(31)(2008), 441–451.
Jianjun He, Jian Chen, and Qingmin Sun, “Effect of loading Rate on Low-Cycle Fatigue Properties of Turbine Rotor Steel,” Procedia Materials Science, 3(2014), 1773–1779.
Mao Xueping, Wang Gang, Ma Zhiyong, “The Development of Materials of Supercritical Units or Ultra Supercritical Units,” Modern Electric Power, 1(22)(2005), 69–75.
G. Junak, M. Ciesla, “Low-cycle fatigue of P91 and P92 steels used in the power engineering industry,” Archives of Materials Science and Engineering, 1(48)(2011), 19–24.
Vani Shankar, M. Valsan, K. Bhanu Sankara Rao, et al., “Low Cycle Fatigue Behavior and Microstructural Evolution of Modified 9Cr-1Mo ferritic steel,” Materials Science Engineering A, 437(2006), 413–422.
Wang, J.R., Li, Y.M., “Low-Cycle Fatigue Properties of Turbine Rotor Steel,” Mechanical Engineering Materials, 5 (1987), 22–27.
WU Hai-li, ZHU Yue-mei, Jia Guo-qing, “Low Cycle Fatigue Behaviors of X12CrMoWVNbN10-1-1 steel for rotors at room temperature,” Journal of University of Science and Technology Beijing, 7(31)(2011), 841–845.
ZHOU Xin-ling, TIAN Yu, LI Hai-xia, et al., “Study on the High Temperature Low Cycle Fatigue Behavior of Ultra-supercritical Turbine HP/IP Rotor Steel,” Mechanical Engineer, 7(2013), 51–52.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2014 TMS
About this paper
Cite this paper
Wang, Y., Lin, F., Zhao, S. (2014). An Experimental Study on the Low Cycle Fatigue Behaviors of Domestic IP Rotor Steel for 1000MW Ultra-Supercritical Turbine. In: Energy Materials 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48765-6_20
Download citation
DOI: https://doi.org/10.1007/978-3-319-48765-6_20
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48598-0
Online ISBN: 978-3-319-48765-6
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)