Enhancement of the Ti‐6Al‐4V alloy corrosion resistance by applying CrN/CrAlN multilayer coating via Arc‐PVD method
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Bibliographic record
Abstract
Abstract In this study, the Ti‐6Al‐4V substrate was coated by CrN‐CrN/TiN‐TiN and CrN/CrAlN multilayer coatings using the cathodic arc physical vapor deposition (Arc‐PVD) method. The results of potentiodynamic polarization (PDP) have shown the lowest and highest corrosion current density belong to the double‐layer (0.16 µA/Cm 2 ) and TiN (0.51 µA/Cm 2 ) samples, indicating the higher corrosion resistance of the double‐layer coating. The field emission electron microscope (FESEM), X‐ray diffraction pattern (XRD), open circuit potential (OCP), PDP, and electrochemical impedance spectroscopy (EIS) analysis were employed in order to characterize the coatings and evaluate their corrosion behavior. Finally, applying the double‐layer coating resulted in the significant improvement of the protective behavior of the Ti‐6Al‐4V alloy, as compared to the sample coated with TiN in corrosive environments.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it