Low cycle fatigue tests have been performed with a 9.5Cr steel at 650°C in air with ramp rates of 7.5 10−8−7.5 10−7 sec−1 and deformation amplitudes of ±1% (R=−1). LCF deformation enhances the uniform scale growth as well as nodule formation. This enhancement is caused by repeated scale cracking in the tensile periods of the LCF cycles. The crack-healing process is very rapid and occurs during the deformation process. These processes lead to the formation of a scale rich in iron, because the chromium content of the alloy is too low for protective scale healing.
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M. Schütze,Oxid. Met. 24, 199 (1985).
J. Barbehön, A. Rahmel, and M. Schütze, inHigh Temperature Alloys for Gas Turbines and Other Applications 1986, W. Betzet al., eds. (D. Reidel, Dordrecht, 1986), p. 1267.
A. S. Khanna, P. Rodriguez, and J. B. Gnanamoorthy,Oxid. Met. 26, 171 (1986).
D. P. Whittle and G. C. Wood,Oxid. Met. 114, 986 (1967).
J. Barbehön, Fortschritt VDI Reihe 5, No. 138, Dusseldorf, 1987.
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Barbehön, J., Rahmel, A. & Schütze, M. Behavior of the scale on a 9.5Cr steel under cyclical deformation of the base metal. Oxid Met 30, 85–94 (1988). https://doi.org/10.1007/BF00656645
- 9.5Cr steel
- corrosion-LCF interaction
- scale cracking