On Stress-Corrosion Cracking Initiation: Pitting Susceptibility and Cathodic Activity Near Nonmetallic Steel Inclusions
Bibliographic record
Abstract
This study evaluates the pitting susceptibility and cathodic activity for endogenous, nonmetallic inclusions in the high-strength API-X52 and 60 in near-neutral, chloride and bicarbonate solutions. The inclusions are characterized in relation to the steel making method, particularly to the compositional variation across the thickness of a pipeline steel slab. Using conventional potentiodynamic scans, the pitting potentials (along with the transpassivation's) are first systematically linked to the constituents of a matrix of test solutions. The local kinetics of corrosion are studied by Scanning Vibrating Electrode Technique (SVET). The local physical phenomena, including the different modes of localized attacks are studied by suitable microscopic and spectroscopic techniques. For comparison, the electrochemical findings are corroborated by testing synthesized Al 2 O 3 and MnS inclusions, mechanically alloyed to pure iron.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 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".