Microscopic Cracking on Flat Alloy 600 Surfaces Following Accelerated Caustic Corrosion: Mapping of Strains and Microstructure During the Corrosion Process
Bibliographic record
Abstract
Microscopic distributions of elastic and plastic strains have been studied at three intervals during an electrochemically accelerated corrosion test of a flat, polished surface of a mill-annealed and unstrained sample of Alloy 600 (UNS N06600) in 10% sodium hydroxide (NaOH) at 315°C. Laue microdiffraction was used with a micron-sized polychromatic (white) x-ray beam to map strain changes in the sample as a function of corrosion time. After two 12 h corrosion periods, tensile elastic strains were detected along a grain boundary. After a third 24 h corrosion period, this particular boundary was found to have cracked to a depth of several microns; other adjacent boundaries exhibited tensile elastic strain, but no cracking. No significant changes to plastic strain distributions in the same area could be detected as a function of corrosion exposure.
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| 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".