Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI
The paper presents the results of the research on the effect of copper on the crystallization process, microstructure and selected properties of the compacted graphite iron. Compacted graphite in cast iron was obtained using Inmold process. The study involved the cast iron containing copper at a con...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2017-03-01
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| Series: | Archives of Foundry Engineering |
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| Online Access: | http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0010/afe-2017-0010.xml?format=INT |
| _version_ | 1797762961104699392 |
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| author | Gumienny G. Kacprzyk B. Gawroński J. |
| author_facet | Gumienny G. Kacprzyk B. Gawroński J. |
| author_sort | Gumienny G. |
| collection | DOAJ |
| description | The paper presents the results of the research on the effect of copper on the crystallization process, microstructure and selected properties of the compacted graphite iron. Compacted graphite in cast iron was obtained using Inmold process. The study involved the cast iron containing copper at a concentration up to approximately 4%. The effect of copper on the temperature of the eutectic crystallization as well as the temperature of start and finish of the austenite transformation was given. It has been shown that copper increases the maximum temperature of the eutectic transformation approximately by 5°C per 1% Cu, and the temperature of the this transformation finish approximately by 8°C per 1% Cu. This element decreases the temperature of the austenite transformation start approximately by 5°C per 1% Cu, and the finish of this transformation approximately by 6°C per 1% Cu. It was found that in the microstructure of the compacted graphite iron containing about 3.8% Cu, there are still ferrite precipitations near the compacted graphite. The effect of copper on the hardness of cast iron and the pearlite microhardness was given. This stems from the high propensity to direct ferritization of this type of cast iron. It has been shown copper increases the hardness of compacted graphite iron both due to its pearlite forming action as well as because of the increase in the pearlite microhardness (up to approx. 3% Cu). The conducted studies have shown copper increases the hardness of the compacted graphite iron approximately by 35 HB per 1% Cu. |
| first_indexed | 2024-03-12T19:34:46Z |
| format | Article |
| id | doaj.art-ab66afcd00da4a12923ae2ee0e1cbd6e |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-12T19:34:46Z |
| publishDate | 2017-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-ab66afcd00da4a12923ae2ee0e1cbd6e2023-08-02T04:14:48ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442017-03-01171515610.1515/afe-2017-0010afe-2017-0010Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGIGumienny G.0Kacprzyk B.1Gawroński J.2Department of Materials Engineering and Production Systems Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15 Street, 90-924 Łódź, PolandDepartment of Materials Engineering and Production Systems Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15 Street, 90-924 Łódź, PolandDepartment of Materials Engineering and Production Systems Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15 Street, 90-924 Łódź, PolandThe paper presents the results of the research on the effect of copper on the crystallization process, microstructure and selected properties of the compacted graphite iron. Compacted graphite in cast iron was obtained using Inmold process. The study involved the cast iron containing copper at a concentration up to approximately 4%. The effect of copper on the temperature of the eutectic crystallization as well as the temperature of start and finish of the austenite transformation was given. It has been shown that copper increases the maximum temperature of the eutectic transformation approximately by 5°C per 1% Cu, and the temperature of the this transformation finish approximately by 8°C per 1% Cu. This element decreases the temperature of the austenite transformation start approximately by 5°C per 1% Cu, and the finish of this transformation approximately by 6°C per 1% Cu. It was found that in the microstructure of the compacted graphite iron containing about 3.8% Cu, there are still ferrite precipitations near the compacted graphite. The effect of copper on the hardness of cast iron and the pearlite microhardness was given. This stems from the high propensity to direct ferritization of this type of cast iron. It has been shown copper increases the hardness of compacted graphite iron both due to its pearlite forming action as well as because of the increase in the pearlite microhardness (up to approx. 3% Cu). The conducted studies have shown copper increases the hardness of the compacted graphite iron approximately by 35 HB per 1% Cu.http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0010/afe-2017-0010.xml?format=INTTheory of crystallizationCompacted graphite ironCopperDTA method |
| spellingShingle | Gumienny G. Kacprzyk B. Gawroński J. Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI Archives of Foundry Engineering Theory of crystallization Compacted graphite iron Copper DTA method |
| title | Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI |
| title_full | Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI |
| title_fullStr | Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI |
| title_full_unstemmed | Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI |
| title_short | Effect of Copper on the Crystallization Process, Microstructure and Selected Properties of CGI |
| title_sort | effect of copper on the crystallization process microstructure and selected properties of cgi |
| topic | Theory of crystallization Compacted graphite iron Copper DTA method |
| url | http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0010/afe-2017-0010.xml?format=INT |
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