Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy
Trace elements Co, Cr were added to investigate their influence on the microstructure and physical properties of Al-Si extruded alloy. The Co, Cr elements were randomly distributed in the matrix, forms intermetallic phase and their existence were confirmed by XRD, EDS and SEM analysis. With addition...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2019-09-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/112989/PDF/AMM-2019-3-08-Hong.pdf |
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| author | S.S. Ahn P. Sharief C.H. Lee H.T. Son Y.H. Kim Y.C. Kim S. Hong S.J. Hong |
| author_facet | S.S. Ahn P. Sharief C.H. Lee H.T. Son Y.H. Kim Y.C. Kim S. Hong S.J. Hong |
| author_sort | S.S. Ahn |
| collection | DOAJ |
| description | Trace elements Co, Cr were added to investigate their influence on the microstructure and physical properties of Al-Si extruded alloy. The Co, Cr elements were randomly distributed in the matrix, forms intermetallic phase and their existence were confirmed by XRD, EDS and SEM analysis. With addition of trace elements, the microstructure was modified, Si particle size was reduced and the growth rate of β-(Al5FeSi) phase limited. Compared to parent alloy, hardness and tensile strength were enhanced while the linear coefficient of thermal expansion (CTE) was significantly reduced by 42.4% and 16.05% with Co and Cr addition respectively. It is considered that the low CTE occurs with addition of Co was due to the formation of intermetallic compound having low coefficient of thermal expansion. The results suggested that Co acts as an effective element in improving the mechanical properties of Al-Si alloy. |
| first_indexed | 2024-04-11T21:38:29Z |
| format | Article |
| id | doaj.art-5294328571cd4800b510eccc1860904c |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-11T21:38:29Z |
| publishDate | 2019-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-5294328571cd4800b510eccc1860904c2022-12-22T04:01:40ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092019-09-01vol. 64No 3857862https://doi.org/10.24425/amm.2019.129461Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded AlloyS.S. AhnP. ShariefC.H. LeeH.T. SonY.H. KimY.C. KimS. HongS.J. HongTrace elements Co, Cr were added to investigate their influence on the microstructure and physical properties of Al-Si extruded alloy. The Co, Cr elements were randomly distributed in the matrix, forms intermetallic phase and their existence were confirmed by XRD, EDS and SEM analysis. With addition of trace elements, the microstructure was modified, Si particle size was reduced and the growth rate of β-(Al5FeSi) phase limited. Compared to parent alloy, hardness and tensile strength were enhanced while the linear coefficient of thermal expansion (CTE) was significantly reduced by 42.4% and 16.05% with Co and Cr addition respectively. It is considered that the low CTE occurs with addition of Co was due to the formation of intermetallic compound having low coefficient of thermal expansion. The results suggested that Co acts as an effective element in improving the mechanical properties of Al-Si alloy.https://journals.pan.pl/Content/112989/PDF/AMM-2019-3-08-Hong.pdfal-si alloymicrostructureextrusioncoefficient of thermal expansiontrace elements |
| spellingShingle | S.S. Ahn P. Sharief C.H. Lee H.T. Son Y.H. Kim Y.C. Kim S. Hong S.J. Hong Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy Archives of Metallurgy and Materials al-si alloy microstructure extrusion coefficient of thermal expansion trace elements |
| title | Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy |
| title_full | Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy |
| title_fullStr | Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy |
| title_full_unstemmed | Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy |
| title_short | Effect of Trace Elements (Co, Cr) on the Microstructure and Physical Properties of Al-Si-Cu-Mg-Fe Extruded Alloy |
| title_sort | effect of trace elements co cr on the microstructure and physical properties of al si cu mg fe extruded alloy |
| topic | al-si alloy microstructure extrusion coefficient of thermal expansion trace elements |
| url | https://journals.pan.pl/Content/112989/PDF/AMM-2019-3-08-Hong.pdf |
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