Acta Metallurgica Sinica (English Letters) >
Effects of temperature, slip amplitude, contact pressure on fretting fatigue behavior of Ti811 alloys at elevated temperatures
Received date: 2008-05-22
Revised date: 2008-10-13
Online published: 2009-10-10
Effects of the temperature, slip amplitude, and contact pressure on fretting fatigue (FF) behavior of the Ti811 titanium alloy were investigated using a high frequency fatigue machine and a home-made high temperature apparatus. The fretting fatigue failure mechanism was studied by observing the fretting surface morphology features. The results show that the sensitivity to fretting fatigue is high at both 350 and 500℃. The higher the temperature, the more sensitive to the fretting fatigue failure is. Creep is an important factor that influences the fretting fatigue failure process at elevated temperatures. The fretting fatigue life of the Ti811 alloy does not change in a monotonic way as the slip amplitude and contact pressure increase. This is owing to the fact that the slip amplitude affects the action of fatigue and wear in the fretting process, and the nominal contact pressure affects the distribution and concentration of the stress and the amplitude of fretting slip at the contact surface, and thus further influences the crack initiation probability and the driving force for propagation.
Key words： Fretting fatigue (FF); Elevated temperature; Titanium alloy; Slip amplitude; Creep
Xiaohua ZHANG , Daoxin LIU . Effects of temperature, slip amplitude, contact pressure on fretting fatigue behavior of Ti811 alloys at elevated temperatures[J]. Acta Metallurgica Sinica (English Letters), 2009 , 22(2) : 131 -137 . DOI: 10.1016/S1006-7191(08)60080-0
[1]S. Chakravarty and A.K. Koul, J Met 47(1995) 31.
[2]T.C. Lindley, Int J Fatigue 19(1997)39.
[3]R.Q. Zhao and B.N. Liu, Rare Mater Eng 23(1994) 59 (in Chinese).
[4]D.X. Liu, B. Tang and J.W. He, Chin J Nonferrous Met 11(2001)454.
[5]R.Q. Zhao, K.Y. Zhu and Z.C. Li, Dev Appl Mater 10(1995) 16.
[6]W.F. Zhang, X.L. Liu and W.G. Zhao, Trans Mater Heat Treat 24(2003)55 (in Chinese).
[7]A.L. Hutson, C. Neslen and T. Nicholas, Tribol Int 36(2003)133.
[8]B.P. Conner, A.L. Hutson and L. Chambon, Wear 255(2003) 259.
[9]A.L. Hutson, T. Nicholas and R. Goodman, Int J Fatigue 21(1999)663.
[10]O. Jin and S. Mall, Wear 253(2002)585.
[11]O. Jin and S. Mall, Int J Fatigue 24(2002)1243.
[12]S. Mall, S.A. Namjoshi and W.J. Porter, Mater Sci Eng A 383(2004)334.
[13]D.X. Liu, H. Chen and J.W. He, Trans Mater Heat Treat 22(2001)49 (in Chinese).
[14]S. Chakravarty and J.P. Dyer, Proc of the 2nd International Symposium on Fretting Fatigue (ASTM Special Technology Press, West Conshohocken, America, 2000).
[15] J.M. Dobromirski, ASTM STP1159 (American Society for Testing and Materials, 1992) p.60.
[16] L.L. WU, B.C. Holloway and D.P. Beesabathina, Surf Coat Technol 130(2000)207.
[17] D.X. Liu and J.W. He, Acta Aer Astr Sin 21(2001)454.
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