Abstract
The low-cycle fatigue (LCF) behavior of a nickel-based single crystal superalloy with [001] orientation was studied at an intermediate temperature of T0° C and a higher temperature of T0 + 250° C under a constant low strain rate of 10−3 s−1 in ambient atmosphere. The superalloy exhibited cyclic tension-compression asymmetry which is dependent on the temperature and applied strain amplitude. Analysis on the fracture surfaces showed that the surface and subsurface casting micropores were the major crack initiation sites. Interior Ta-rich carbides were frequently observed in all specimens. Two distinct types of fracture were suggested by fractogaphy. One type was characterized by Mode-I cracking with a microscopically rough surface at T0 + 250° C. Whereas the other type at lower temperature T0° C favored either one or several of the octahedral {111} planes, in contrast to the normal Mode-I growth mode typically observed at low loading frequencies (several Hz). The failure mechanisms for two cracking modes are shearing of γ′ precipitates together with the matrix at T0 ° C and cracking confined in the matrix and the γ/γ′ interface at To + 250° C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Maclachlan, D.W. and Knowles, D.M., Fatigue behaviour and lifing of two single crystal superalloys. Fatigue and Fracture of Engineering Materials and Structures, 2001, 24: 503–521.
Suresh, S., Fatigue of Materials. 2nd ed. New York: Cambridge University Press, 1998.
Chan, K.S. and Leverant, G.R., Elevated-temperature fatigue crack growth behaviour of MAR-M200 single crystals. Metallurgical Transactions A, 1987, 18A: 593–602.
Walter, W., Stephen, D. and Antolovich, D., Yielding and deformation behaviour of the single crystal superalloy PWA1480. Metallurgical Transactions A, 1987, 18A: 85–95.
Yi, J.Z., Torbet, C.J., Feng, Q., et al., Ultrasonic Fatigue of a single crystal Ni-base superalloy at 1000° C. Material Science and Engineering A, 2007, 443: 142–149.
Pope, D.P. and Ezz, S.S., Mechanical properties of Ni3Al and nickel-base alloys with high volume fraction of γ′. International Metals Reviews, 1984, 29: 136–167.
Lall, C., Chin, S., and Pope, D.P., The orientation and temperature dependence of the yield stress of Ni3(Al, Nb) single crystals. Metallurgical Transactions A, 1979, 10A: 1323–1332.
Shah, D.M. and Duhl, D.N., Superalloy 1984, M. Gell, et al., eds., AIME, Warrendale, PA, 1984, 105–114.
Miner, R.V., Gabb, T.P. and Jayda, J., et al., Orientation and Temperature Dependence of Some Mechanical Properties of the Single-Crystal Nickel-Base Superalloy Rene N4: Part III. Tension-Compression Anisotropy. Metallurgical Transactions A, 1986, 17A: 507–512.
Jiao, F., Bettge, D. and Osterle, W., et al., Tension-compression Asymmetry of The (001) Single Crystal Nickel Base Superalloy SC16 under Cyclic Loading at Elevated Temperatures. Acta Materialia, 1996, 44(10): 3933–3942.
Leverant, G.A. and Gell, M., The influence of Temperature and Cyclic Frequency on the Fatigue Fracture of Cube Orientated Nickel-Base Superalloy Single Crystal. Metallurgical Transactions A, 1975, 6A: 367–371.
Telesman, J. and Ghosn, L.J., Fatigue Crack Growth Behavior of PWA 1484 Single Crystal Superalloy at Elevated Temperatures. Journal of Engineering for Gas Turbines and Power, 1996, 118: 399–405.
Antolovich, B.F., Saxena, A. and Antolovich, S.D., Fatigue Crack Propagation in Single-Crystal CMSX-2 at Elevated Temperature. Journal of Materials Engineering and Performance, 1993, 2: 489–496.
Swanson, G.R. and Arakere, N.K., Effect of Crystal Orientation on Analysis of Single-Crystal, Nickel-Based Turbine Blade Superalloys. NASA/TP-2000-210074. National Aeronautics and Space Administration. Marshall Space Flight Center. 2000.
Gabb, T.P., Gayda, J. and Miner, R.V., Orientation and temperature dependence of some mechanical properties of the single-crystal nickel-base superalloy Rene N4: Part II. Low cycle fatigue behaviour. Metallurgical Transactions A, 1986, 17A: 497–505.
Deluca, D.P. and Cowles, B.A., Fatigue and Fracture of Single Crystal Nickel in High Pressure Hydrogen. Hydrogen Effects on Material Behavior, N.R. Moody and A.W. Thomson (eds.), TMS, Warrendale, PA, 1989.
Deluca, D. and Annis, C., Fatigue in Single Crystal Nickel Superalloys, Office of Naval Research, Department of the Navy FR23800, August 1995.
He, L.Z., Zheng, Q., Sun, X.F., et al., Effect of temperature and strain amplitude on dislocation structure of M963 superalloy during high-temperature low cycle fatigue. Materials Transactions, 2006, 47(1): 67–71.
Lamm, M. and Singer, R.F., The effect of casting conditions on the high-cycle fatigue properties of the single-crystal nickel-base superalloy PWA1483. Metallurgical and Materials Transactions A, 2007, 38: 1177–1183.
Author information
Authors and Affiliations
Corresponding author
Additional information
Project supported by the National Natural Science Foundation of China (No. 50371042).
Rights and permissions
About this article
Cite this article
Ma, X., Shi, H., Gu, J. et al. Temperature Effect on Low-Cycle Fatigue Behavior of Nickel-Based Single Crystalline Superalloy. Acta Mech. Solida Sin. 21, 289–297 (2008). https://doi.org/10.1007/s10338-008-0833-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10338-008-0833-2