INFLUENCE OF ROTATING MAGNETIC FIELD DRIVEN FORCED CONVECTION ON THE MICROSTRUCTURES OF SN-BI ALLOYS
Bibliographic record
Abstract
Through analyzing the solidified structure of Sn-Bi alloys in rotating magnetic field (RMF),it is found that the RMF can eliminate macrosegregation,cause the fracture of dendrites and refinement of solidification structure,accelerate the velocity of melt flow and the diffuse of solute near the solid-liquid interface,decrease eutectic spacing,and cause the regional difference of eutectic microstructure.At the same time,there is a transition of dendrite→equiaxed→globular→dendrite with increasing the rotating frequency.The basic reasons of dendrite fracture and transition of growth form and the eutectic spacing change are the enhancement of the melt flow velocity,the homogenizations of temperature and solute fields,and the relative motion between the primary phase and the melt caused by the electric conductivities difference.The reason of macrosegregation elimination is that the primary phase is subjected to resultant force of gravity,buoyancy and Lorentz force.Furthermore,the physical mechanism on the transition of solidification microstructure is discussed.
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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) | 0.001 | 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 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".