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Record W2329740749 · doi:10.1515/htmp.2007.26.1.59

Segregation in Titanium Alloy Ingots

2007· article· en· W2329740749 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

VenueHigh Temperature Materials and Processes · 2007
Typearticle
Languageen
FieldMaterials Science
TopicMaterial Properties and Applications
Canadian institutionsUniversity of British Columbia
FundersU.S. Air Force
KeywordsMaterials scienceMetallurgyAlloyTitanium alloyMaterials processingTitaniumManufacturing engineeringEngineering

Abstract

fetched live from OpenAlex

In this study we report an experimental determination of the segregation coefficients of some elements in commercial titanium alloys. The methods used are point analysis of as-cast alloys and analysis of zone-melted samples. The as-cast samples for point analysis consisted of laboratory arc-cast ingots and also of sections of as-cast vacuum-arc remelted ingots of conventional industrial sizes. The zone-melted samples were prepared from either an optical furnace system or from an induction zone refiner. In both these cases the melting was carried out under argon of 35 kPa pressure to prevent volatilization of alloy elements. We find that the values of segregation coefficients determined differ significantly from those derived from binary phase diagrams, due to the strong inter-element interactions in these systems, but follow the general trends to be expected from the reported liquidus/solidus relationships. The implications of the results in terms of the segregation to be expected in commercial ingots prepared by either vacuum arc remelting or by hearth remelting is discussed and it is concluded that proposed new alloy compositions containing substantial amounts of Fe and Cr will prove difficult to manufacture with adequate composition control as a result of the segregation of these elements during solidification.

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)0.001
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 score0.004
Threshold uncertainty score0.684

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
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)0.0010.000

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 head0.008
GPT teacher head0.227
Teacher spread0.219 · 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