The Grain Structures in some 5000 Series Aluminium Alloys after Asymmetric Rolling and Annealing
Bibliographic record
Abstract
The development of grain structures after asymmetric rolling (ASR) and annealing was investigated in Al-Mg alloys AA5754, AA5182 and AA5083. It has been demonstrated that a fine grain structure could be produced through continuous recrystallization, but it is strongly affected by the presence of large second phase particles. In AA5754 the volume fraction of large particles is relatively low and continuous recrystallization is able to occur throughout the sheet thickness, resulting in a fine grain structure of 2μm mean grain size. In AA5182 the fraction of large particles increases to a level that the continuous recrystallization occurs only in the sheet surface, whereas the sheet centre undergoes discontinuous recrystallization. The discontinuous recrystallization due to particle stimulated nucleation (PSN) is dominant in AA5083 so that no continuous recrystallization has been observed. The fully recrystallized grain structure is slightly finer in the ASR processed AA5083 than the conventionally rolled one.
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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 | 0.002 | 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 | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 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".