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Record W4389584870 · doi:10.17118/11143/20998

Experimental characterisation of heat flux during industrial quenchingprocesses for accurate estimation of the heat transfert coefficient

2023· article· en· W4389584870 on OpenAlexaff
Gamaliel Salazar, Jean‐Sebastien Lemyre‐Baron, Mohammad Jahazi, Henri Champliaud, Antoine Tahan

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicMetallurgical Processes and Thermodynamics
Canadian institutionsÉcole de Technologie Supérieure
Fundersnot available
KeywordsQuenching (fluorescence)Heat transfer coefficientHeat fluxThermodynamicsMaterials scienceFlux (metallurgy)Heat transferMechanicsPhysicsMetallurgyOpticsFluorescence

Abstract

fetched live from OpenAlex

High strength steels used in landing gears in aircraft often go through a quench and temper (Q&T) heat treatment cycle that results in the required mechanical properties. Accurate estimation of the heat transfer during the cooling stage (i.e. quench) is of critical importance for reliable prediction of the distortion that could occur after quenching. While standard laboratory test methods are useful to compare the cooling performance of different quenchants; however, such tests hardly represent the actual conditions experienced in industry and often introduce large uncertainties in the predicted severity of the distortion. Specifically, the complex geometry of the component, the positioning of the heating furnace with respect to the quench bath, etc. are illustrative examples of the sources of differences in the heat extraction dynamic on real-life components from laboratory results since small probe diameters tend to produce film boiling caused by a higher heat flux density, which may not be the case for industrialized components. Furthermore, widely accepted quenching intensity factors based on standard testing (e.g., Grossman number) are unable to represent the physical phenomena of the quenching process.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
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 score0.002
Threshold uncertainty score0.007

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.027
GPT teacher head0.253
Teacher spread0.226 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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