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Fatigue Properties of P/M Materials
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English
Abstract
The tensile properties and fatigue endurance limits of several widely used P/M steels have been tested. Statistical estimates of the 99.9% survival stress have shown that fatigue endurance ratios can vary from 0.16 to 0.47. Thus the use of 0.38 as a rule of thumb for estimating the fatigue endurance limit from static tensile property data can result in large errors.
The single most effective method of improving fatigue properties is to increase the part density.
Fractographic observations were made on some of the fatigue failures, including stable and unstable crack growth.
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Authors
Citation
O'Brien, R., "Fatigue Properties of P/M Materials," SAE Technical Paper 880165, 1988, https://doi.org/10.4271/880165.Also In
References
- Kravic A. F. Pasquine D. L. “Fatigue Properties of Sintered Nickel Steels” International Journal of Powder Metallurgy 5 1 1969 55
- “Materials Standards for P/M Structural Parts” MPIF Standard 35 Metal Powder Industries Federation 1977-1988
- O'Brien R. C. “Impact and Fatigue Characterization of Selected Ferrous P/M Materials” Progress in Powder Metallurgy 1987 43 Metal Powder Industries Federation 1987 761
- Rice R. C. “Fatigue Data Analysis” ASM Metals Handbook 8 9th 1985 695 720
- Haynes R. “Fatigue Behavior of Sintered Metals and Alloys” Powder Metallurgy 13 26 October 1980 465 510
- Dieter G. Mechanical Metalluragy McGraw-Hill New York 1961 381