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Record W1979079939 · doi:10.1177/0021998303034506

Hydrostatic Extrusion of Metal Matrix Composites

2003· article· en· W1979079939 on OpenAlexaff
D. J. Lahaie, J.D. Embury

Bibliographic record

VenueJournal of Composite Materials · 2003
Typearticle
Languageen
FieldEngineering
TopicAluminum Alloys Composites Properties
Canadian institutionsMcMaster University
Fundersnot available
KeywordsMaterials scienceExtrusionComposite materialHydrostatic equilibriumFormabilityHydrostatic stressHydrostatic pressureComposite numberFlow stressStress (linguistics)Stress fieldStrain rateFinite element methodStructural engineeringMechanics

Abstract

fetched live from OpenAlex

The effect of hydrostatic pressure on the formability of a model Cu-W metal matrix composite (MMC) was investigated. The main experimental observation was that damaged and codeformed products were obtained from nominally identical Cu-W billets. A criterion for the suppression of damage during hydrostatic extrusion was developed. The resulting critical hydrostatic pressure criterion was estimated from slip line field theory in order to rationalize the experimental observations. The critical hydrostatic pressure for damage suppression in the W fibers depends on the ratio of fracture stress to flow stress. The analysis suggests a very important effect of both the stress state during hydrostatic extrusion and the previous processing history of the composite.

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)0.001
metaresearch head score (Gemma)0.000
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 score0.011
Threshold uncertainty score0.808

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
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 head0.009
GPT teacher head0.218
Teacher spread0.209 · 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

Citations3
Published2003
Admission routes1
Has abstractyes

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