This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
High-Cycle and Impact Fatigue Behavior of Carburized Steels
Annotation ability available
Sector:
Language:
English
Abstract
The influence of residual stress and retained austenite on the fracture behavior of bend test specimens of carburized steels was evaluated. The test results are part of an ongoing research effort intended to compare the relative fracture properties of alternate grades of steel and their respective standard grades having similar hardenability. In general, steels of equal hardenability and core carbon content exhibited similar fracture behavior. Compressive residual stress in the carburized case was found to significantly influence the impact fracture stress which, in turn, was correlated with impact fatigue properties. High levels of retained austenite at the surface caused the peak compressive residual stress to occur further into the case. The occurrence of residual stress peaks further into the case was not necessarily detrimental to impact fracture stress or impact fatigue properties. High-cycle fatigue limits were more dependent on processing variables than on differences in alloy content.
Recommended Content
Citation
Diesburg, D., "High-Cycle and Impact Fatigue Behavior of Carburized Steels," SAE Technical Paper 780771, 1978, https://doi.org/10.4271/780771.Also In
References
- Landgraf R. W. Richman R. H. “Fatigue Behavior of Carburized Steels,” ASTM STP 569 December 1973 130 142
- Vukovich Dennis Pierman Richard “Laboratory Evaluation of New Low Alloy Gear Steels,” SAE Paper 770416 February 28 March 4 1977
- Society of Automotive Engineers “Residual Stress Measurements by X-ray Diffraction,” SAE J 784a 1971
- Parrish G. “The Influence of Microstructure on the Properties of Case-Carburized Components,” Heat Treatment of Metals 3 1976 73 79
- Parrish G. “The Influence of Microstructure on the Properties of Case-Carburized Components,” Heat Treatment of Metals 4 1976 101 109
- Parrish G. “The Influence of Microstructure on the Properties of Case-Carburized Components,” Heat Treatment of Metals 1 1976 6 12
- Parrish G. “The Influence of Microstructure on the Properties of Case-Carburized Components,” Heat Treatment of Metals 2 1976 49 53
- deRetana A. F. Doane D. V. “Predicting Hardenability of Carburizing Steels,” Metal Progress 100 3 September 1971 65
- Diesburg D. E. Eldis G. T. “Fracture Resistance of Various Carburized Steels,” Fall AIME Meeting in Cincinnati September 1975 Metallurgical Transactions
- Motoyama M. “The Residual Stress and Mechanical Properties of Carburized Steels,” Trans. JIM Supplement 9 1968 142-147
- Apple C. A. Krauss G. “Microcracking and Fatigue in a Carburized Steel,” Metallurgical Transactions 4 1973 1195 1200
- Marcus H. L. Harris J. M. “Fracture of Case-Hardened Steels,” Scripta Metallurgica 9 1975 563 568