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Record W1607446875

Nominal and effective strains in severe plastic deformation processes

2002· article· en· W1607446875 on OpenAlexvenueno aff
O. Dimitrov

Bibliographic record

VenueAnnales de Chimie Science des Matériaux · 2002
Typearticle
Languageen
FieldMaterials Science
TopicMicrostructure and mechanical properties
Canadian institutionsnot available
Fundersnot available
KeywordsEqual channel angular extrusionSevere plastic deformationMaterials scienceTorsion (gastropod)ForgingPlasticityNanocrystalline materialDeformation (meteorology)ExtrusionTransverse planeComposite materialBall (mathematics)MechanicsMetallurgyStructural engineeringGeometryMathematicsMicrostructurePhysicsEngineeringNanotechnology
DOInot available

Abstract

fetched live from OpenAlex

Abstract Severe plastic deformation (SPD) processes may be used for obtaining materials with a nanocrystalline structure and enhanced properties. Recent work on such methods is briefly reviewed, with special emphasis on processes resulting in only minor shape changes, i.e. multi-step forging (MSF), high-pressure torsion (HPT) and equal-channel angular extrusion (ECAE). The nominal strain levels achieved by these processes are discussed, taking into account various possible conditions of deformation (at constant or variable thickness for HPT, according to the exact shape of the die for ECAE). In actual operation, strain values may deviate from the calculated ones, particularly due to strain inhomogeneities (along the sample radius or through the thickness for HPT, longitudinal or transverse inhomogeneities in ECAE). The domains of application for these methods are considered.

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 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)0.001
Version: codex-gemma-dda1882f352aValidation 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 score0.101
Threshold uncertainty score0.402

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.001
Open science0.0000.000
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 head0.026
GPT teacher head0.241
Teacher spread0.215 · 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 teacher head, 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

Citations5
Published2002
Admission routes1
Has abstractyes

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