Hetero-deformation and fracture of a near-eutectic high entropy alloy under dynamic impact
Bibliographic record
Abstract
Eutectic high entropy alloys (EHEAs) typically consist of two phases with distinct structures and properties, for example, soft and hard phases that deform heterogeneously. In this study, we report the deformation and failure phenomena in a near-EHEA (AlCoFeNi 2 ) with face-centered cubic (FCC) and ordered body-centered cubic (B2) phases under high strain rate impacts (up to ∼7 × 10 3 s -1 ). We find that such EHEA undergoes localized softening via the shear rupture of the brittle B2 phase, leading to high plastic strains at failures. Moreover, a majority of cracks initiate along cumulative wavy-slip traces within the B2 grains due to strain localizations. This study improves the understanding of the deformation and fracture mechanisms of EHEAs under dynamic impact conditions.
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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) | 0.002 | 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".