Flow curves up to peak strength of hot deformed D2 and W1 tool steels
Why this work is in the frame
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Bibliographic record
Abstract
A high carbon, high chromium cold work die steel (D2) and a water hardenable carbon tool steel (W1) were hot deformed in torsion between 900 and 1150°C for the alloy steel and 900 and 1200°C for the carbon steel, at strain rates from 0·1 to 4 s -1 . The slope of the stress–strain curves, which represents strain hardening, decreased linearly then changed gradually to a slower linear decline before decreasing quickly to zero at the peak stress. On further strain, stress decreased to a steady state regime, indicative of dynamic recrystallisation. Kocks–Mecking analysis provided an activation enthalpy with an average comparable to the activation energy derived from a sinh modified Arrhenius analysis of peak stress. The alloy carbides of the D2 steel have the effect of raising its strength to over twice that of the carbon steel, accelerating the onset of dynamic recrystallisation but drastically lowering its ductility.
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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