Anodic Kinetics of NiCr[Mo] Alloys During Localized Corrosion: I. Diffusion-Controlled Dissolution
Bibliographic record
Abstract
Artificial pit electrodes have been used to measure the pitting dissolution kinetics in the anodic limiting current region for a range of Ni-22Cr-xMo (wt %) alloys with x = 0, 3, 6, 9 and 13. Most of the data were obtained at 25–90 °C using 1 M NaCl solution. Type 316 stainless steel and pure nickel were used for comparison. At high temperatures the anodic limiting current density for the NiCr(Mo) alloys (x = 0, 3, 6, 9) is nearly the same as that of stainless steel, other things being equal; at intermediate temperatures the NiCr(Mo) alloys give higher ilim values. Changing the NaCl concentration between 0.1 and 1 M causes a 20% change in ilim at a given pit depth, and the reasons for this are discussed. Comparison of pure Ni and Ni-22Cr shows a 35–40% higher ilim for the latter at a given pit depth, and the reasons for this are discussed. Literature values of solubility and diffusivity, and a 1-D finite difference model, are used to rationalize – in part – the limiting current densities and associated average diffusivities in terms of concentration-dependent diffusivities.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".