A Study on Fretting Fatigue Behavior of Degraded 1Cr-0.5Mo Steel

Abstract:

The aged degradation of material is observed when heat-resisting steel is exposed for long periods of time at high temperatures. In the present study, the degraded 1Cr-0.5Mo steel that is used for long periods of time at high temperature(about 515°C) and artificially reheat-treated materials are prepared. These materials were used to study the effect of aged degradation on fretting fatigue behavior. Through this experiment, it is found that the fretting fatigue strength of reheat-treated 1Cr-0.5Mo steel is approximately 46 percent lower than that of the plain fatigue strength of the same material. Furthermore, the fretting fatigue strength of degraded 1Cr-0.5Mo steel was less than 53 percent of the same material™s plain fatigue strength. The maximum value of fatigue strength difference is observed as 57 percent between the fretting fatigue of degraded material and plain fatigue of reheat-treated material. These results can be used as basic data in a structural integrity evaluation of heat-resisting steel considering aged degradation effects.

• Periodical: Key Engineering Materials (Volumes 261-263)
• Pages: 1221-1226
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.261-263.1221
• Online since: April 2004
• Authors: Jae Do Kwon, Sang Jin Cho, Yong Tak Bae
• Keywords: 1Cr-0.5Mo Steel, Contact Force, Degradation, Fatigue Strength, Fretting Fatigue, Friction Force, Relative Slip Amplitude

References

[1] V. A. Bišs and T. Wada, Metallurgical Transactions A, 16A (1985) p.109.

[2] Y. Nishizaka et al., J. Pressure vessel Technology, 107 (1985), p.285.

[3] J. D. Kwon et al., Nuclear Engineering and Design, 198 (2000) p.227.

[4] K. D. Challenger et al., J. Engineering Materials and Technology, 103 (1981) p.7.

[5] R. B. Waterhouse, FRETTING CORROSION, Pergamon Press.

[6] D. A. Hills and D. Nowell, in FRETTING FATIGUE-ESIS 18, (1994) p.171.

[7] T. C. Lindley and K. J. Nix, in FRETTING FATIGUE-ESIS 18, (1994) p.197.

[8] M. Sumita, N. Maruyama and K. Nakazawa, in FRETTING FATIGUE-ESIS 18, (1994) p.351.

[9] T. Satoh, ASTM STP, 1367 (2000) p.295.

[10] T. C. Lindley and K. J. Nix, ASTM STP, 1159 (1992) p.153.