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Record W1963726832 · doi:10.1179/000705900101501146

Statistical analysis of metastable pitting events on carbon steel

2000· article· en· W1963726832 on OpenAlexaff
Y. Frank Cheng, Jing‐Li Luo

Bibliographic record

VenueBritish Corrosion Journal · 2000
Typearticle
Languageen
FieldMaterials Science
TopicHydrogen embrittlement and corrosion behaviors in metals
Canadian institutionsUniversity of AlbertaNova Chemicals (Canada)
Fundersnot available
KeywordsPitting corrosionMetastabilityChlorideMaterials scienceMetallurgyCarbon steelChemistryCorrosion

Abstract

fetched live from OpenAlex

The metastable pitting behaviour of galvanically coupled and potentiostatically controlled A516–70 carbon steel in a chloride containing solution has been statistically analysed. It is shown that the pitting activity, indicated by the pit initiation rate, depends on immersion time, applied potential, and chloride concentration. There is a strong correlation among the pitting events at a high pitting activity, where the metastable pitting events follow non-Poissonian behaviour and a previous pit has an influence on subsequent pitting events. When the pitting activity decreases, the correlation decreases and approaches the Poisson 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.

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)0.006
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.007

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.006
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
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 head0.014
GPT teacher head0.267
Teacher spread0.253 · 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 designObservational
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

Citations28
Published2000
Admission routes1
Has abstractyes

Explore more

Same venueBritish Corrosion JournalSame topicHydrogen embrittlement and corrosion behaviors in metalsFrench-language works237,207