Microstructure and Dislocation Behavior of Alloy 800H Crept at 760 °C and 950 °C
Bibliographic record
Abstract
Abstract The creep behavior and microstructure evolution of Alloy 800H were investigated at 760 °C under 80 MPa and 950 °C under 25 MPa. Despite differing temperature and stress conditions, no significant differences were observed in the total rupture strain or rupture time. Microstructural analysis revealed that subgrain formation occurred during creep at 760 °C, while subgrains were rarely observed at 950 °C. Precipitate coarsening was negligible at 760 °C but became pronounced during creep at 950 °C. At 760 °C, a high dislocation density was observed, with strong interactions among dislocations and between dislocations and precipitates, indicating a dislocation-controlled creep mechanism. In contrast, at 950 °C, dislocation density was much lower, and dislocation cross-slip was prominent, suggesting diffusion-controlled creep.
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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 | 0.000 | 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 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".