Creep Life Prediction of High Temperature Tube Materials for Power Plants


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The high temperature creep behaviors of heat machine systems such as aircraft engines, boilers and turbines in power plants and nuclear reactor components have been considered as an important and needful fact. There are considerable research results available for the design of high temperature tube materials in power plants, based on uni-axial tension creep tests. However, few studies on the Initial Strain Method (ISM) capable of securing repair, maintenance, cost loss and life loss have been made. In this method, a long time prediction of high temperature creep characteristics can be dramatically reduced through a short time experiment. The purpose of present study is to investigate the high temperature creep life of 1Cr-0.5Mo steel using the Initial Strain Method. The creep test was performed at 500°C, 550°C and 600°C under a pure loading. In the prediction of creep life for 1Cr-0.5Mo steel, the equation of ISM was superior to those of LMP. Especially, the long time prediction of creep life was identified to improve the reliability.



Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka




Y. S. Kong et al., "Creep Life Prediction of High Temperature Tube Materials for Power Plants", Key Engineering Materials, Vols. 261-263, pp. 1115-1122, 2004

Online since:

April 2004




[1] B. J. Cane and P. F. Aplin, Proceeding of the 1993 Pressure Vessels and Piping Conference, (1993) pp.25-29.

[2] S. K. Oh, S. J. Kim and T. E. Jeon , Proc. of 6th International Offshore and Polar Eng. Conf., ISOPE, Los Angels, (1996) pp.275-279.

[3] S. K. Oh, International Jour. of Ocean Engineering and Technology, Vol. 1, No. 1, (1998) pp.78-86.

[4] Y. S. Kong, S. K. Oh, N. K. Park, KCORE, Vol. 13, No. 4, (1999) pp.112-5. NRIM, National Research Institute for Metals, Tokyo, Japan, NRIM Creep Data Sheet, No. 35A. (1990).

[6] F. R. Larson and J. Miller, Transaction of the ASME, (1952) pp.765-775.

[7] Lu. Ling, Ph. M. Thesis, Purdue University, USA. (1990).