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Record W4387036436 · doi:10.1016/j.jmrt.2023.09.266

The temperature dependence of cyclic dynamic recrystallization in as-extruded pure zinc

2023· article· en· W4387036436 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

VenueJournal of Materials Research and Technology · 2023
Typearticle
Languageen
FieldEngineering
TopicMetallurgy and Material Forming
Canadian institutionsMcMaster University
Fundersnot available
KeywordsMaterials scienceDynamic recrystallizationNucleationRecrystallization (geology)MicrostructureAtmospheric temperature rangeMetallurgyGrain boundaryFlow stressComposite materialHot workingThermodynamics

Abstract

fetched live from OpenAlex

The deformation characteristics of as-extruded pure zinc were studied over a wide deformation temperature range from -40 °C to 300 °C. Two-cycle dynamic recrystallization was recognized for the first time to occur at different temperatures, leading to an oscillatory flow curve. The second stress peak was mitigated as the deformation temperature increased, while it disappeared at 300 °C. Different mechanisms, including twin dynamic recrystallization, twin-assisted grain boundary nucleation, and continuous mechanism were operative during the first dynamic recrystallization cycle, while the discontinuous mechanism was dominant during the second cycle. The accelerated dynamic recovery at high temperatures (200 °C) exhausted the driving force for the occurrence of the second dynamic recrystallization cycle. A distinct difference was observed between the microstructure developed at high and low temperatures. A bimodal recrystallized grains microstructure was formed at 25 °C, while a deformed microstructure including elongated grains was developed at 200 °C. Increasing the deformation temperature from 25 °C to 200 °C remarkably increased the grain orientation spread values and strengthened the final texture intensity, where the maximum texture intensity was remarkably increased from 9.95 to 30.64 multiple of a random distribution.

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)0.002
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 score0.041
Threshold uncertainty score0.185

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
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 head0.017
GPT teacher head0.306
Teacher spread0.289 · 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