First‐Principles Study on Interfacial Bonding Characteristics and Tensile Deformation Behavior of Ni (001)/Ni<sub>3</sub>Al (001) in K418 Superalloy
Bibliographic record
Abstract
Abstract In order to theoretically explore the interfacial bonding properties between the main phase (γ) and the second precipitated phase (γ') in K418 superalloy formed by direct laser deposition. First‐principles calculation is utilized to study the adhesion work, interfacial energy, electronic structure, bonding properties, and tensile properties between γ phase (Ni (001)) and γ' phase (Ni3Al (001)). The results show that the interface energy of the NiAl‐center (0.35–1.19 J m−2) is the smallest and therefore it is with the highest interface bonding strength. The electronic analysis suggests that strong Ni‐Al covalent and ionic bonds as well as Ni‐Ni metal bonds at the interface of the NiAl‐center model are formed with the appearance of obvious orbital hybridization. The yield strength of the NiAl‐top model reaches up to 19.38 GPa under the uniaxial tensile test, which is further increased when doped with those atoms of Re, Ta, and W, up to 20.38, 20.42, and 20.93 GPa, respectively. A fundamental understanding is presented here for the design of superalloys.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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".