Prediction of creep properties for two nickel-base superalloys from stress relaxation testing
Why this work is in the frame
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Bibliographic record
Abstract
The creep properties derived from stress relaxation tests are compared to those from creep tests in the temperature range from 705 °C to 800 °C and stresses from 200 MPa to 750 MPa for the nickel base superalloys IN738LC and modified Waspaloy. The creep behaviour of IN738LC exhibits an extended period of steady state strain rate, while creep of modified Waspaloy exhibits only a minimum creep strain rate. The results indicate that stress relaxation tests can be used to estimate the creep steady state or minimum strain rates, time to 1 per cent creep strain, and the creep stress exponent for both superalloys. Stress relaxation tests can generate these properties in a significantly more time-efficient and specimen-efficient manner than creep tests, regardless of whether the superalloy creep behaviour exhibits a steady state or minimum creep strain rate.
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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 | 0.001 | 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) | 0.000 | 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 it