Short-term corrosion behavior of Q235 steel and X70 pipeline steel in gray desert soil in North America
Bibliographic record
Abstract
The short-term corrosion behavior of Q235 and X70 steel samples buried for one year in the test trench in a typical mountain sierozem area in Calgary,Canada was investigated by corrosion rate measurement,corrosion characteristic observation and analysis through scanning electrochemistry microscopy and X-ray diffraction,and soil physical and chemical properties analysis.It is found that Q235 steel has a close average corrosion rate and maximum pitting corrosion depth to X70 pipeline steel,but the former has an obviously higher pitting density than the latter.The corrosion products of these two metals are similar and mainly composed of FeOOH,Fe2O3 and Fe3O4,and the corrosion product layer is loose with cracks and not able to prevent these metals from corrosion.There are multiplex bacteria,such as sulphate reduction bacteria(SRB),sulphate oxidation bacteria(SOB) and heterotrophic bacteria in the soil attaching to the two steel samples,which are in cooperation to accelerate the occurrence of localized corrosion under the corrosion product layer due to the effects of their metabolic actions on corrosion processes.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| 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".