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Record W4297891641 · doi:10.21203/rs.3.rs-1998263/v1

Microstructural characterization and mechanical properties of AlMg alloy fabricated by additive friction stir deposition

2022· preprint· en· W4297891641 on OpenAlexaff
Zhikang Shen, Mingtao Zhang, Dongxiao Li, Xinyu Liu, Shaolong Chen, Wentao Hou, Yuquan Ding, Zhonggang Sun, Yu Su, Wenya Li, Yanhong Tian

Bibliographic record

VenueResearch Square · 2022
Typepreprint
Languageen
FieldEngineering
TopicAluminum Alloys Composites Properties
Canadian institutionsUniversity of Waterloo
FundersState Key Laboratory of Advanced Welding and JoiningHarbin Institute of TechnologyNational Natural Science Foundation of China
KeywordsMaterials scienceEquiaxed crystalsMicrostructureUltimate tensile strengthScanning electron microscopeAlloyComposite materialElectron backscatter diffractionDeposition (geology)Friction stir processingTensile testingOptical microscopeMetallurgy

Abstract

fetched live from OpenAlex

Abstract This work investigates microstructure characterization and mechanical properties of Aluminum alloy fabricated by additive friction stir deposition (AFSD). Microstructure characterize of the Aluminum alloy 5B70 base material (BM) and build were compared using optical microscope (OM) and electron back scattered diffraction (EBSD). Hardness distribution in the direction perpendicular to the cross-section of deposited area was measured and the pattern was evaluated. Tensile tests were performed on the BM and the deposition using digital image correlation (DIC), and the stress distribution states of the specimens were analyzed in real time. After the tensile tests, the fracture micromorphology was characterized using scanning electron microscope (SEM). The results show that a high degree of recrystallization of the grains in the deposition zone occurs and fine equiaxed grains are formed, which are oriented differently. In tensile tests on the deposition, it was found that the strength of the deposition was significantly lower compared to the BM, but its toughness was significantly higher. And there is a significant anisotropy in the mechanical properties of the deposition.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
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 score0.066
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

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 science0.0000.001
Research integrity0.0000.001
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 head0.029
GPT teacher head0.272
Teacher spread0.243 · 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.

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
Published2022
Admission routes1
Has abstractyes

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