Texture Change in Pure Mg and Mg-1.5wt% Mn Casting Alloy During Compressive Creep-Deformation
Why this work is in the frame
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Bibliographic record
Abstract
Most magnesium alloys undergo creep under the service conditions of the automotive powertrain components (50- 100MPa, 175-200ºC). Texture studies on creep-tested pure Mg and Mg-1.5wt%Mn casting alloys were performed via Neutron Diffraction (ND). Analysis of the as-cast pure Mg, before creep testing indicated that there is preferred orientation with the c-axis of the HCP grains perpendicular to the growth direction of the columnar grains (and parallel to the longitudinal axis of the casting). Following compressive-creep testing (15MPa, 175ºC, 150hrs.), the maximum intensity of the texture in pure Mg dropped notably, indicating a rotation of basal-plane normals. No significant change in the maximum intensity of texture was observed in Mg-1.5%Mn samples creep tested under the same conditions. Creep tests conducted at 50MPa (which is above the yield strength of the alloys) and at 150ºC on both pure Mg and Mg-1.5%Mn samples resulted in the rotation of the basal plane normals towards the compression axis.
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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) | 0.000 | 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