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Dissimilar laser welding of an as-rolled CoCrFeMnNi high entropy alloy to Inconel 718 superalloy

2024· article· en· W4400619971 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueOptics & Laser Technology · 2024
Typearticle
Languageen
FieldEngineering
TopicHigh Entropy Alloys Studies
Canadian institutionsUniversity of Waterloo
FundersHorizon 2020UNIDEMIDeutsches Elektronen-SynchrotronMinistério da Ciência, Tecnologia e Ensino SuperiorMinistry of Science, ICT and Future PlanningNational Research FoundationFundação para a Ciência e a TecnologiaNational Research Foundation of KoreaCALIPSOplus
KeywordsMaterials scienceInconelSuperalloyElectron backscatter diffractionWeldingMicrostructureWeldabilityMetallurgyAlloyUltimate tensile strengthCALPHADLaves phaseComposite materialPhase (matter)Intermetallic

Abstract

fetched live from OpenAlex

In this work, dissimilar laser welding between an as-rolled CoCrFeMnNi high entropy alloy (HEA) and Inconel 718 Ni-base superalloy was successfully performed. Defect-free joints with a tensile strength of 822 MPa and a fracture strain of 7.1 % were obtained. The microstructural analysis was conducted using scanning electron microscopy (SEM), electron backscattered diffraction (EBSD), energy-dispersive X-ray spectroscopy (EDS) and high energy synchrotron X-ray diffraction (SXRD), complemented by thermodynamic calculations using the CalPhaD methodology. Mechanical assessment of the joints was conducted via microhardness mapping and tensile testing, allowing to unveil processing-microstructure-properties relationships. Although the precipitation of the Laves phase was identified within the fusion zone, our results reveal the excellent dissimilar weldability between the two alloys, allowing the deployment of this dissimilar material pair for structural applications.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.221
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.005
GPT teacher head0.230
Teacher spread0.225 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it