Corrosion Control of Type 316L Stainless Steel in Sulfamic Acid Cleaning Solutions
Why this work is in the frame
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Bibliographic record
Abstract
An investigation was conducted to better understand the corrosion behavior of Type 316L (UNS S31603) stainless steel in sulfamic acid (NH2HSO3) cleaning solutions and the relative merits of traditional corrosion control strategies. Gravimetric and electrochemical measurements in deaerated and uninhibited 10 wt% NH2HSO3 at 65°C revealed that corrosion proceeds in an active state and involves hydrogen evolution as the dominant cathodic process. Effective corrosion control attained through passivity can be attained through either anodic polarization or the addition of a chemical passivator (dissolved oxygen in this case). Upgrading to the more corrosion-resistant Type 2205 duplex stainless steel (UNS S32205) was not considered reliable because this alloy exhibited borderline passivity. Electrochemical and x-ray photoelectron spectroscopy (XPS) surface microanalytical measurements revealed that the effective corrosion control attained through the addition of a commercial diethylthiourea-containing organic inhibitor was related to the manner in which the absorbed diethylthiourea inhibits the hydrogen evolution reaction kinetics.
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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 | 0.001 | 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