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Record W219331433 · doi:10.5006/c2009-09411

Stress Corrosion Cracking of Stainless Steels in High Temperature, High Purity Water under Constant Load Conditions

2009· article· en· W219331433 on OpenAlexaff
Edward Richey, Julie Eager

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMaterials Science
TopicHydrogen embrittlement and corrosion behaviors in metals
Canadian institutionsLockheed Martin (Canada)
Fundersnot available
KeywordsMaterials scienceMetallurgyStress corrosion crackingCorrosionCrackingStress (linguistics)High-temperature corrosionConstant (computer programming)Composite material

Abstract

fetched live from OpenAlex

Abstract Stress corrosion crack (SCC) growth rate tests were conducted on sensitized and non-sensitized stainless steels (Type 304, 304L) cold worked to levels between 18 and 28%. Compact tension specimens were actively loaded to a stress intensity factor of approximately 38 MPa√m and exposed to high temperature, high purity water at 360°C under constant load conditions. Specimens were also ring loaded to a K level of approximately 35 MPa√m and exposed to high temperature high purity water at 338°C. SCC was observed in every specimen test with the exception of the 304L specimen cold worked 18%. The crack front engagement was greater than 50% in all of the specimens that exhibited SCC with the exception of the non-sensitized Type 304 specimen that was cold worked 19%. Intergranular SCC can occur in heavily cold worked (30%) Type 304 and 304L stainless steel exposed to high temperature, high purity water under static loading conditions without the presence of anions at 360°C. These results show that intergranular SCC can occur in heavily cold worked (20-30%) Type 304 stainless steel exposed to high temperature, high purity water under static loading conditions without the presence of anions at 338°C. The measured SCC growth rates for non-sensitized Type 304 and 304L stainless steels were significantly below the SCC growth rates predicted for Alloy 600 under the same environmental and loading conditions. The measured SCC growth rate for sensitized Type 304 stainless steel was consistent with the SCC growth rate predicted for Alloy 600 under the same environmental and loading conditions.

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)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.005
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
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 head0.014
GPT teacher head0.269
Teacher spread0.256 · 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 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

Citations0
Published2009
Admission routes1
Has abstractyes

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