Nanoindentational and conventional mechanical properties of spark plasma sintered Ti–Mo alloys
Bibliographic record
Abstract
The densification behavior and mechanical properties of spark plasma sintered titanium-molybdenum alloys were investigated in this paper. All Ti-(4, 8, 12, 16, and 20 wt%) Mo samples were sintered at 1200 °C for 5 min under 50 MPa. A significant relative density of 99.9% was secured for the Ti-based alloy with 16 wt.% Mo. The overall trend of hardness was similar to that of the relative density as Ti-16 wt.% Mo alloy showed the highest hardness values of 372 HV30 and 592 HV0.3 in macro (30 kg) and micro scales (300 g), respectively. Maximum ultimate tensile strength values (852 MPa at room temperature and 600 MPa at 600 ℃) belonged to the Ti-8 wt.% Mo sample. Such an observation was related to the formation of β-Ti phase and the strain-induced transformation phenomenon. The highest flexural strength of ∼2 GPa belonged to the Ti-12 wt.% Mo alloy, which may be a result of solid solution formation between Ti and Mo. Finally, average values of nano hardness, elastic modulus, and stiffness of various phases available in the samples with 12 and 20 wt% Mo were calculated through nano-indentation technique and the former specimen presented higher values in all the mentioned qualities.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".