Effect of Strain Rate on Compressive Properties of High-Speed Tool Steel
Bibliographic record
Abstract
In the present study, the effect of strain rate on compressive properties of high-speed tool steel was experimentally investigated. It is not easy to obtain the stress-strain relationship under high-speed deformation since high-speed tool steel has very high strength. In order to carry out the impact compressive test of high-strength materials, we developed the split Hopkinson bar (SHB) compression test apparatus using cemented carbide for the elastic bar. The impact test was obtained at the strain rate of 103 s-1. The quasi-static test was carried out at strain rates of 10-3 to 10-1 s-1. Both tests were conducted under three temperature conditions, 298 K, 201 K, and 77 K. Within the set of experiments, almost all specimens showed an increase in flow stress with increasing strain rate (strain rate dependence of material strength) was confirmed. However, the impact test at 77 K showed that the effect of work softening was greater than the strain rate dependence of strength.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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".