Bibliographic record
Abstract
The predominant strain producing mechanism in superplastic materials is attributed to grain boundary sliding (GBS). Though there have been many attempts to model GBS, most of them are heuristic and not based on the microscopic deformation at the scale of grain boundaries. Lack of such models has hindered the progress of a methodical development of alloying processes. Hence an attempt is made to develop a constitutive model of grain boundary using atomic simulation results. Detailed atomic simulations are carried out on aluminum bicrystals of Σ3 and Σ9 coincident site lattice boundaries to obtain characteristic behavior of grain boundary sliding/migration. Using the results thus obtained a constitutive model based on cohesive zone approach is developed to predict the behavior of grain boundaries under the external loads and hence GBS. This constitutive model is implemented in a finite element method (FEM) code to analyze the GBS/migration at a continuum scale.
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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 | 0.001 | 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 | 0.001 |
| 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".