This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Life Prediction Scheme for Carburized Members Subjected to ln-Phase Multiaxial Stresses
Annotation ability available
Sector:
Language:
English
Abstract
A dimensionless fatigue life parameter 
is developed for the correlation of fatigue data of carburized and core material. It is shown that the Smith-Watson-Topper parameter (E σmax ɛa)½ can be generalized to the form 
to account for the fatigue strength differentials of dissimilar materials such as the core and case-core interface. Fatigue data generated using circumferentially notched specimens (Kt = 1.46 and Kt = 2.22) was successfully correlated to the core material fatigue data using this parameter at low stresses. From these observations, a scheme is proposed to predict low-stress fatigue life of a carburized member experiencing multiaxial stresses based on the core material fatigue response only.
is developed for the correlation of fatigue data of carburized and core material. It is shown that the Smith-Watson-Topper parameter (E σmax ɛa)½ can be generalized to the form to account for the fatigue strength differentials of dissimilar materials such as the core and case-core interface. Fatigue data generated using circumferentially notched specimens (Kt = 1.46 and Kt = 2.22) was successfully correlated to the core material fatigue data using this parameter at low stresses. From these observations, a scheme is proposed to predict low-stress fatigue life of a carburized member experiencing multiaxial stresses based on the core material fatigue response only.Authors
Topic
Citation
Newaz, G., "Fatigue Life Prediction Scheme for Carburized Members Subjected to ln-Phase Multiaxial Stresses," SAE Technical Paper 830635, 1983, https://doi.org/10.4271/830635.Also In
References
- Krotine, F. T. McGuire, M. F. Ebert, L. J. Troiano, A. R. "The Influence of Case Properties and Retained Austenite on the Behavior of Carburized Components," Trans., Amer. Soc. for Metals 62 829 838 1969
- McGuire, M. F. Troiano, A. R. Ebert, L. J. "Phase Transformation Effects on the Bending Stress Distributions in Carburized Steel Components," Trans., Series D, Amer. Soc. of Mech. Engineers 93 699 707 1971
- Landgraf, R. W. Richman, R. H. "Fatigue Behavior of Carburized Steel," Fatigue of Composite Materials, ASTM STP 569 Amer. Soc. for Testing and Materials 130 144 1975
- Landgraf, R, W. Richman, R. H., “Some Effects of Retained Austenite on the Fatigue Resistance of Carburized Steel,” Metallurgical Trans. A 6 955 964 1975
- Magnusson, L., "Low Cycle Behavior of Case Hardened Steel," Mechanisms of Deformation and Fracture, Interdisciplinary Conference, Lulea, Sweden, 1978, Easterling, K. E., Ed., Pergamon Press, Oxford 105 110 1979
- Magnusson, L. Ericsson, T. "Initiation and Propagation of Fatigue Cracks in Carburized Steel," Heat Treatment '79, International Conference, Birmingham, England, The Metals Soc., London, England 202 206 1980
- Magnusson, L. Ericsson, T. Hildenwall, B. "Cyclic Behavior of Carburized Steel," Scandinavian Symposium in Material Science, Lulea, Sweden ( 1980
- Parrish, G. The Influence of Microstructure on the Properties of Case-Carburized Components Amer. Soc. for Metals, Metals Park, Ohio( 1980
- Ebert, L. J. "The Role of Residual Stresses in the Mechanical Performance of Case Carburized Steels," Metallurgical Trans. 9 1537 1551 1978
- Morrow, J. Ross, A. S. Sinclair, G. M. "Relaxation of Residual Stresses Due to Fatigue Loading," SAE Trans., Soc. of Automotive Engineers 68 40 48 1960
- Burke, J. D. Lawrence, F. V., Jr "The Effect of Residual Stresses on Weld Fatigue Life," Fracture Control Report No. 29, College of Engineering, University of Illinois, Urbana, Illinois 1977
- Waraniak, J. M. "Cyclic Deformation and Fatigue Behavior of Carburized Steel," M.S. Thesis, Dept of Mechanical and Industrial Engineering, University of Illinois, Urbana, Illinois ( 1980
- Smith, K. N. Watson, P. Topper, T. H. "A Stress-Strain Function for the Fatigue of Metals," Journal of Materials 5 4 767 778 1970
- Mowbray, D. F. McConnelee, J. E. "Applications of Finite Element Stress Analysis and Stress-Strain Properties in Determining Notch Fatigue Specimen Deformation and Life," ASTM STP 519, Amer. Soc. for Testing and Materials 151 169 1973
- Newaz, G. M. "Axial Cyclic Response of Unnotched and Notched Carburized Cylindrical Member under Constant Amplitude Completely Reversed Loading," Fracture Control Program Report No. 41, University of Illinois, Urbana, Illinois 1981