Influence of Boron Additions and Heat Treatments on the Fatigue Resistance of CoCrMo Alloys
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Specimens and Equipment
2.3. Stress and Stress Concentration Factor
2.4. Experimental Procedure
3. Results
3.1. S-N Curves
3.2. Fatigue Crack Surfaces
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Cr | Mo | C | Si | Fe | B | Co |
---|---|---|---|---|---|---|
27–30 | 8–11 | 0.08–0.26 | 0.17–0.74 | 0.3–0.8 | 0–1 | balance |
%B | 0 | 0.06 | 0.25 | 0.5 | 1 |
---|---|---|---|---|---|
As-cast | 0B-AC | 0.06B-AC | 0.25B-AC | 0.5B-AC | 1B-AC |
Heat treated | 0B-HT | 0.06B-HT | 0.25B-HT | 0.5B-HT | 1B-HT |
Material | As-Cast | Heat Treated | ||
---|---|---|---|---|
N | NCP | N | NCP | |
0B | 100,120 | 7400 | 3,879,407 | 2500 |
0.06B | 226,129 | 2700 | 398,440 | 31,500 |
0.25B | 799,846 | 7900 | 107,191 | 3000 |
0.5B | 1,153,988 | 3200 | 2,033,481 | 1600 |
1B | 5,507,500 | 2900 | 9,849,976 | 900 |
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Hernandez-Rodriguez, M.A.L.; Mercado-Solis, R.D.; Presbítero, G.; Lozano, D.E.; Martinez-Cazares, G.M.; Bedolla-Gil, Y. Influence of Boron Additions and Heat Treatments on the Fatigue Resistance of CoCrMo Alloys. Materials 2019, 12, 1076. https://doi.org/10.3390/ma12071076
Hernandez-Rodriguez MAL, Mercado-Solis RD, Presbítero G, Lozano DE, Martinez-Cazares GM, Bedolla-Gil Y. Influence of Boron Additions and Heat Treatments on the Fatigue Resistance of CoCrMo Alloys. Materials. 2019; 12(7):1076. https://doi.org/10.3390/ma12071076
Chicago/Turabian StyleHernandez-Rodriguez, Marco A. L., Rafael D. Mercado-Solis, Gerardo Presbítero, Diego E. Lozano, Gabriela M. Martinez-Cazares, and Yaneth Bedolla-Gil. 2019. "Influence of Boron Additions and Heat Treatments on the Fatigue Resistance of CoCrMo Alloys" Materials 12, no. 7: 1076. https://doi.org/10.3390/ma12071076