Effect Of Hydrogen Heat Treatment Of Cold Spray Additively Manufactured Ti-6Al-4V
Bibliographic record
Abstract
Cold Spray Additive Manufacturing (CSAM) is a solid-state additive technology where metal powders are accelerated through a converging-diverging Laval type nozzle using a pressurized carrier gas. These powders are then sprayed onto a substrate in the shape of the desired component and subsequently removed. As only low temperatures (less than 1000 °C) are used during CSAM, the strength of the component relies completely on particle deformation and interlocking as very little diffusional processing takes place in order to create metallurgical bonds. Post-spray heat treatments are often necessary in order for components to achieve mechanical properties similar to other additive techniques. In this work, the heat treatment process known as Thermohydrogen Reduction of Microstructure (THRM), which was initially developed for laser based additive manufacturing, is applied to Ti-6Al-4V components produced via CSAM. Its effect on density, microstructure, and tensile properties are examined.
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".