Quantitative determination of secondary slip in copper single crystals deformed in tension
Bibliographic record
Abstract
To determine the amount and type of secondary slip, the full deformation matrix was calculated from current orientation and shape measurements at successive strain intervals for copper crystals of various orientations deformed in tension at room temperature. The data for diverse orientations within the standard triangle are remarkably similar and represent a combination of response to internal stress and applied stress. Internal stress due to primary edge dislocations is relieved by the same combination of secondary shears in all orientations, two particular Lomer–Cottrell reactions plus a shear on the cross-glide plane giving zero residual stress. Analogous sets of shears occur to relieve internal stresses arising from conjugate glide after overshoot ends, and coplanar glide in orientations close to [111]–[110]. This type of slip, not visible at the surface, is termed microscopic secondary slip. Deviations from this microscopic secondary glide are always in the direction of applied stress. Except for the special case of positive and negative cross-slip, secondary slip lines visible at the surface, termed slip-line slip, represent slip occurring in response to applied stress.
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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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".