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Micromechanical imp...
Micromechanical impact of solidification regions in ductile iron revealed via a 3D strain partitioning analysis method
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- Xu, C. L. (author)
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
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- Andriollo, T. (author)
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
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- Zhang, Y. B. (author)
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
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- Hernando, Juan Carlos (author)
- Jönköping University,JTH, Material och tillverkning
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- Hattel, J. (author)
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
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- Tiedje, N. (author)
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
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(creator_code:org_t)
- Elsevier, 2020
- 2020
- English.
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In: Scripta Materialia. - : Elsevier. - 1359-6462 .- 1872-8456. ; 178, s. 463-467
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Abstract
Subject headings
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- Strain partitioning between first-to-solidify (FTS) and last-to-solidify (LTS) regions upon tensile loading of ductile iron was investigated by combining in-situ X-ray tomography with digital volume correlation and postmortem metallographic examinations. The results indicate that the plastic shear bands form mainly by linking graphite particles contained in the same FTS region. A special distance function is introduced to show that this is due to the lower strength of the FTS regions compared to the LTS regions, but also to the higher stress concentration associated with the particles. The methodology is general and therefore extendable to material systems containing similar microstructural heterogeneities.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Cast iron
- Digital volume correlation
- Micromechanics
- Solidification microstructure
- Strain distribution
- Ductility
- Solidification
- Strain measurement
- Digital volume correlations
- Distance functions
- Graphite particles
- Metallographic examination
- Microstructural heterogeneity
- Solidification microstructures
- Strain distributions
- Strain partitioning
Publication and Content Type
- ref (subject category)
- art (subject category)
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