Experimental Investigation of the Tribological Contact between Ti6Al4V-EBM Pin and UHMWPE Rotating Sheet for Prosthetic Applications
Abstract
:1. Introduction
2. Materials and Methods
2.1. Production of the Ti6Al4V Alloy Pin
2.2. Production of UHMWPE Sheets
2.3. Tribometric Test
2.4. Experimental Methods for Materials Characterization
3. Results
3.1. Characterization of the Ti6Al4V Alloy Pin
3.2. Tribometric Test
3.3. Investigations on the Contacting Surfaces
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Al | V | C | Fe | O | N | H | Ti |
---|---|---|---|---|---|---|---|
Composition of the powder used | |||||||
6.0 | 4.0 | 0.03 | 0.1 | 0.1 | 0.001 | <0.003 | Bal. |
Limits in composition range of the alloy Ti6Al4V ELI—Grade 23 (ASTM F136) | |||||||
5.5–6.5 | 3.5–4.5 | <0.08 | <0.25 | <0.13 | <0.05 | <0.012 | Bal. |
Acceleration Voltage | 60 kV |
---|---|
Beam current intensity | 15 mA |
Scanning speed | 4500 mm/s |
Scan spacing | 200 μm |
Layer thickness | 50 μm |
Lubricating Condition | Transient Stage (Logarithmic Law) | Stationary Stage (Linear Law) | ||||
---|---|---|---|---|---|---|
y = a1∙ln(x) + b1 | y = a2∙x + b2 | |||||
a1 | b1 | R2 | a2 | b2 | R2 | |
Dry | 4.540 | 7.427 | 0.995 | 0.028 | 10.830 | 0.983 |
Water | 2.829 | 3.876 | 0.978 | 0.021 | 6.928 | 0.974 |
SSF | 1.713 | −3.831 | 0.965 | 0.017 | 1.950 | 0.992 |
Lubricating Condition | (dV/dL)s (mm3/m) | P (N) | Specific Wear Rate (mm3/N m) |
---|---|---|---|
Dry | 0.00138 | 30 | 4.6 × 10−5 |
Water | 0.00087 | 30 | 2.9 × 10−5 |
SSF | 0.00078 | 30 | 2.6 × 10−5 |
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Visco, A.; Giudice, F.; Guglielmino, E.; Scolaro, C.; Sili, A. Experimental Investigation of the Tribological Contact between Ti6Al4V-EBM Pin and UHMWPE Rotating Sheet for Prosthetic Applications. Metals 2022, 12, 1526. https://doi.org/10.3390/met12091526
Visco A, Giudice F, Guglielmino E, Scolaro C, Sili A. Experimental Investigation of the Tribological Contact between Ti6Al4V-EBM Pin and UHMWPE Rotating Sheet for Prosthetic Applications. Metals. 2022; 12(9):1526. https://doi.org/10.3390/met12091526
Chicago/Turabian StyleVisco, Annamaria, Fabio Giudice, Eugenio Guglielmino, Cristina Scolaro, and Andrea Sili. 2022. "Experimental Investigation of the Tribological Contact between Ti6Al4V-EBM Pin and UHMWPE Rotating Sheet for Prosthetic Applications" Metals 12, no. 9: 1526. https://doi.org/10.3390/met12091526