Effect of retrogression and re‐aging (RRA) heat treatment on the corrosion behavior of B206 aluminum–copper casting alloy
Why this work is in the frame
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Bibliographic record
Abstract
The effect of the retrogression and re‐aging (RRA) heat treatment on the corrosion behavior of B206 aluminum‐copper casting alloy in artificial seawater employing electrochemical experiments such as electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization, weight loss measurements and microstructure studies is reported. The electrochemical results show that the corrosion resistance of RRA samples is much higher than that of the as‐cast microstructure for the first 48 h of immersion in artificial seawater. However, the RRA samples corrode more rapidly after 48 h of immersion. Weight loss measurements confirm the electrochemical findings. The dependence of the corrosion rate on immersion time for RRA samples was found to be related to the microstructural features. Exfoliation corrosion was also observed in the cross‐section of RRA samples after 48 h of immersion in artificial seawater.
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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 | 0.000 | 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 it