Corrosion Characteristics of Al-B<sub>4</sub>C Metal Matrix Composites in Boric Acid Solution
Bibliographic record
Abstract
The corrosion behavior of Al-B 4 C metal matrix composites in H 3 BO 3 solutions with different Cl - contents was investigated using potentiodynamic polarization and zero resistance ammetry techniques. Results show that the corrosion of Al-B 4 C composites in H 3 BO 3 solution increases with increasing B 4 C volume fraction in the composites. The main corrosion characteristic of Al-B 4 C composites in H 3 BO 3 solution is the galvanic corrosion between Al matrix and B 4 C particles. In the galvanic couple, B 4 C particle acts as cathode and Al matrix acts as anode. The cathodic reaction is hydrogen revolution reaction, which controls the corrosion mechanism of Al-B 4 C composites. Pitting is not observed on the composite surface in the H 3 BO 3 solution with zero Cl - . However, with addition of Cl - in H 3 BO 3 solution, pitting occurs and the corrosion resistance remarkably decreases with increasing Cl - content. The corrosion resistance of Al-B 4 C composites in H 3 BO 3 solutions is compared with that in the standard 3.5% NaCl solution.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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".