Grain coarsening in Ti – 45Al based titanium aluminides at supertransus temperature and subsequent lamellar structure formation
Bibliographic record
Abstract
The phenomenon of grain growth in the α phase field and the effect of annealing time/grain size on the formation of lamellar microstructure upon subsequent cooling was studied in Ti - 45Al - 2Nb - 0.4Mn and Ti- 45Al - 2Nb alloys. The grain size of both alloys increased with annealing time and the grain growth exponent of Ti - 45Al - 2Nb- 0.4Mn and Ti - 45Al- 2Nb at 1350°C was observed to be 0.52 and 0.38, respectively. The difference in the grain growth exponent values has been attributed to the initial grain size and the grain boundary morphology. Interlamellar spacing in the lamellar microstructure, which formed upon furnace cooling from the α phase field, was also observed to increase with increase in annealing time, i.e. interlamellar spacing increased with increase in grain size.
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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 | 0.000 |
| 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) | 0.001 | 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".