Effect of manganese and silicon on iron intermetallics in 206 foundry alloy
Why this work is in the frame
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Bibliographic record
Abstract
Iron is one of common impurities in 206 alloys and detrimental platelet-like iron intermetallics can easily form at high iron contents resulted from the increasing use of recycled aluminum alloys. The present work has investigated the iron intermetallics formed in Al-4.5 wt.% Cu alloy with 0.3 wt.% Fe and the effect of Mn and Si on the morphology and transformation of these iron intermetallics using thermal analysis, image analysis, differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The results show that there are three major types of iron intermetallics according to their morphologies: platelet-like, block and Chinese script. It is observed that single addition of either Mn or Si, even at high contents, can only partially convert the iron intermetallics from platelet-like to Chinese script. All the platelet-like iron intermetallics can be transformed to Chinese script at appropriate addition of both Mn and Si with a combination of 0.3 wt% Mn and 0.3 wt% Si.
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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 it