Corrosion behavior and interface characterizations of CoCrFeNiMoNb/WC high-entropy alloy composite coatings in molten aluminum
Bibliographic record
Abstract
Molten aluminum corrosion presents a major challenge in industrial applications because of its extreme aggressiveness at high temperatures. In this study, novel CoCrFeNiMo 0.2 Nb 0.2 /WC composite coatings are developed via laser cladding, and the WC ceramic is demonstrated to be beneficial for improving the corrosion resistance of the coatings in molten aluminum. As the WC content increases to 60 wt%, the corrosion rate of the coatings reaches a minimum value of 2.0 × 10 -14 m 2 /s. The corrosion mechanism involves two key processes: (1) the formation of a protective Fe/Cr oxide layer, followed by (2) its reaction with molten Al, forming brittle intermetallics that degrade the integrity of the coating. A critical finding is that WC particles delay failure by resisting dissolution, but degradation of the surrounding binder phase generates crack-prone transition layers under thermal stress. This work provides both a high-performance coating solution and fundamental insights into molten-metal corrosion mechanisms.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".