Creep Life Prediction of T91/12Cr1MoV Dissimilar Welded Joint

Article Preview

Abstract:

Based on the creep test results of T91/12Cr1MoV dissimilar welded joint at different conditions, the creep curves of this dissimilar welded joint were established by modified θ projection concept. Low stress creep life was predicted by this curve and the established creep curve shows a good agreement with the experimental data. For computation, Larson-Miller parameters method was also used in creep life forecasting of T91/12Cr1MoV dissimilar welded joint. The resu lt showed that the modified θ projection concept was more accurately in predicting the creep life than Larson-Miller parameters method in allusion to T91/12Cr1MoV dissimilar welded joint.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

304-309

Citation:

Online since:

June 2013

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Wilshire B, "New high-precision creep procedures for accurate life extension of plant," International Journal of Pressure Vessels and Piping, vol. 39, pp.73-82, 1989.

DOI: 10.1016/0308-0161(89)90039-2

Google Scholar

[2] Tu Shandong, Xuan Fuzhen and Wang Weize, "Some critical issues in creep and fracture assessment at high temperature," Acta Metallurgica Sinica,vol. 45(7), pp.781-787, 2009.

Google Scholar

[3] Evans R W, Parker J D and Wilshire B, "An extrapolation procedure for long-term creep strain and creep life prediction with special reference to 0.5Cr0.5Mo0.25V ferritic steels," in Recent Advances in Creep and Fatigue of Engineering Materials and Structures, Pineridge Press: pp.135-167, 1983.

Google Scholar

[4] Guo Hong , Zhang Wen quan,"Application of θ Projection Concept in Creep Life Prediction for SM41C Steel," Journal of iron and steel research, vol.12(5), pp.54-57, 2000.

Google Scholar

[5] Guo Hong, Zhang Wen quan and Ren Hui ping, "A Modified Method to Predict Creep Life of High Temperature Structure," Journal of material engineering, vol.2, pp.34-36, 2000.

Google Scholar

[6] Guo Hong, "Research on Fatigue-Creep Interaction Behaviour of a Nickel-Base Single Crystal Superalloy," Beijing: University of Science and Technology Beijing, 1995.

Google Scholar

[7] Evans R W, Beden I, and Wilshire B, "Creep and fracture of engineering materials and structure," Swansea, UK: Pineridge Press, 1984.

Google Scholar

[8] Frost H J, Ashby M F, "Deformation-mechanism maps: the plasticity and creep of metals and ceramics," London, UK: Pegramon Press, 1982.

Google Scholar

[9] Chen G L, Guo H, Sun J Y, Shu G G, Li Y M. J Univ Sci Tech1997, 19: 157.

Google Scholar

[10] Zhao Jiaping, Li Baocheng, "A Mathematical Model of Tempering Parameter and Figure HTT for Quenched Steels," Metal science and technology, vol. 7(2), pp.32-39, 1988.

Google Scholar