Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron
High silicon and molybdenum ductile cast irons (Si-Mo alloys) are commonly used as exhaust manifold materials suffering from high temperature-oxidation and thermal-mechanical fatigue. The structural integrity of cast Si-Mo alloys under these service conditions is attributed to their microst...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2021-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100003C.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832572520397537280 |
|---|---|
| author | Çelik G.A. Tzini M.-I. T. Polat Ş. Aristeidakis J S. Atapek Ş.H. Sarafoglou P.I. Haidemenopoulos G.N. |
| author_facet | Çelik G.A. Tzini M.-I. T. Polat Ş. Aristeidakis J S. Atapek Ş.H. Sarafoglou P.I. Haidemenopoulos G.N. |
| author_sort | Çelik G.A. |
| collection | DOAJ |
| description | High silicon and molybdenum ductile cast irons (Si-Mo alloys) are commonly
used as exhaust manifold materials suffering from high temperature-oxidation
and thermal-mechanical fatigue. The structural integrity of cast Si-Mo
alloys under these service conditions is attributed to their microstructure
consisting of spheroidal graphite and Mo-rich carbide embedded in a ferritic
matrix. However, the cast structure includes also pearlite structure having
a detrimental effect on the mechanical properties, therefore the cast matrix
needs to be heat treated. In this study, the solidification of a Si-Mo
ductile iron was investigated using (i) thermodynamic and kinetic
calculations by Thermo-Calc and DICTRA software and (ii) thermal analysis in
order to reveal out the sequence of phase formation and the phase
transformations during solidification and (iii) microanalysis by energy
dispersive spectrometer in order to determine elemental segregation and
compare with the calculated values. The solidified structure was also
characterized and all microstructural features were specified. |
| format | Article |
| id | doaj-art-f5cc9c2ebf6c40a2aa9ac481612fb85b |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-f5cc9c2ebf6c40a2aa9ac481612fb85b2025-02-02T09:58:17ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-01571536210.2298/JMMB200717003C1450-53392100003CSimulation and analysis of the solidification characteristics of a Si-Mo ductile ironÇelik G.A.0Tzini M.-I. T.1Polat Ş.2Aristeidakis J S.3Atapek Ş.H.4Sarafoglou P.I.5Haidemenopoulos G.N.6Kocaeli University, Department of Metallurgical and Materials Engineering, TurkeyUniversity of Thessaly, Department of Mechanical Engineering, Laboratory of Materials, GreeceKocaeli University, Department of Metallurgical and Materials Engineering, TurkeyUniversity of Thessaly, Department of Mechanical Engineering, Laboratory of Materials, GreeceKocaeli University, Department of Metallurgical and Materials Engineering, TurkeyUniversity of Thessaly, Department of Mechanical Engineering, Laboratory of Materials, GreeceUniversity of Thessaly, Department of Mechanical Engineering, Laboratory of Materials, Greece + Khalifa University of Science and Technology, Department of Mechanical Engineering, UAEHigh silicon and molybdenum ductile cast irons (Si-Mo alloys) are commonly used as exhaust manifold materials suffering from high temperature-oxidation and thermal-mechanical fatigue. The structural integrity of cast Si-Mo alloys under these service conditions is attributed to their microstructure consisting of spheroidal graphite and Mo-rich carbide embedded in a ferritic matrix. However, the cast structure includes also pearlite structure having a detrimental effect on the mechanical properties, therefore the cast matrix needs to be heat treated. In this study, the solidification of a Si-Mo ductile iron was investigated using (i) thermodynamic and kinetic calculations by Thermo-Calc and DICTRA software and (ii) thermal analysis in order to reveal out the sequence of phase formation and the phase transformations during solidification and (iii) microanalysis by energy dispersive spectrometer in order to determine elemental segregation and compare with the calculated values. The solidified structure was also characterized and all microstructural features were specified.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100003C.pdfsi-mo cast ironthermo-calcsolidificationmicrostructural characterization |
| spellingShingle | Çelik G.A. Tzini M.-I. T. Polat Ş. Aristeidakis J S. Atapek Ş.H. Sarafoglou P.I. Haidemenopoulos G.N. Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron Journal of Mining and Metallurgy. Section B: Metallurgy si-mo cast iron thermo-calc solidification microstructural characterization |
| title | Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron |
| title_full | Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron |
| title_fullStr | Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron |
| title_full_unstemmed | Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron |
| title_short | Simulation and analysis of the solidification characteristics of a Si-Mo ductile iron |
| title_sort | simulation and analysis of the solidification characteristics of a si mo ductile iron |
| topic | si-mo cast iron thermo-calc solidification microstructural characterization |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100003C.pdf |
| work_keys_str_mv | AT celikga simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT tzinimit simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT polats simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT aristeidakisjs simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT atapeksh simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT sarafogloupi simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron AT haidemenopoulosgn simulationandanalysisofthesolidificationcharacteristicsofasimoductileiron |