Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting
In this study, low-carbon cast steel was reinforced with TiC by SHS-B method, also known as combustion synthesis during casting method. The composite zone was then subjected to surface remelting by Gas Tungsten Arc Welding (GTAW) method. The remelting operation was realized manually, at 150 A curren...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2017-12-01
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| Series: | Archives of Foundry Engineering |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0148/afe-2017-0148.xml?format=INT |
| _version_ | 1827846805038039040 |
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| author | Sobula S. Kwiecień A. Olejnik E. Pałka P. |
| author_facet | Sobula S. Kwiecień A. Olejnik E. Pałka P. |
| author_sort | Sobula S. |
| collection | DOAJ |
| description | In this study, low-carbon cast steel was reinforced with TiC by SHS-B method, also known as combustion synthesis during casting method. The composite zone was then subjected to surface remelting by Gas Tungsten Arc Welding (GTAW) method. The remelting operation was realized manually, at 150 A current magnitude. Microstructure, phase composition and hardness of remelted zone were investigated. XRD results reveal that the phases of the composite zone in initial state consist of TiC and Feα. Surface remelting resulted in formation of thick layers containing TiC carbides, Feα and Feγ. Microstructural examination has shown strong refinement of titanium carbides in remelted zone and complete dissolution of primary titanium carbides synthetized during casting. The average diameter of carbides was below 2 μm. The structural changes are induced by fast cooling which affects crystallization rate. The hardness (HV30) of the remelted layer was in the range between 250 HV and 425 HV, and was lower than hardness in initial state. |
| first_indexed | 2024-03-12T09:21:32Z |
| format | Article |
| id | doaj.art-b68a898476e34589ba9f27946743777d |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-12T09:21:32Z |
| publishDate | 2017-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-b68a898476e34589ba9f27946743777d2023-09-02T14:28:12ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442017-12-0117415115410.1515/afe-2017-0148afe-2017-0148Microstructure Characteristic of TiCReinforced Cast Steel after GTAW RemeltingSobula S.0Kwiecień A.1Olejnik E.2Pałka P.3AGH University of Science and Technology, Cracow, Poland, al. Mickiewicza 30, 30-059 Cracow, PolandAGH University of Science and Technology, Cracow, Poland, al. Mickiewicza 30, 30-059 Cracow, PolandAGH University of Science and Technology, Cracow, Poland, al. Mickiewicza 30, 30-059 Cracow, PolandAGH University of Science and Technology, Cracow, Poland, al. Mickiewicza 30, 30-059 Cracow, PolandIn this study, low-carbon cast steel was reinforced with TiC by SHS-B method, also known as combustion synthesis during casting method. The composite zone was then subjected to surface remelting by Gas Tungsten Arc Welding (GTAW) method. The remelting operation was realized manually, at 150 A current magnitude. Microstructure, phase composition and hardness of remelted zone were investigated. XRD results reveal that the phases of the composite zone in initial state consist of TiC and Feα. Surface remelting resulted in formation of thick layers containing TiC carbides, Feα and Feγ. Microstructural examination has shown strong refinement of titanium carbides in remelted zone and complete dissolution of primary titanium carbides synthetized during casting. The average diameter of carbides was below 2 μm. The structural changes are induced by fast cooling which affects crystallization rate. The hardness (HV30) of the remelted layer was in the range between 250 HV and 425 HV, and was lower than hardness in initial state.http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0148/afe-2017-0148.xml?format=INTComposite steel castingTiC-reinforced cast steelGTAW surface remelting |
| spellingShingle | Sobula S. Kwiecień A. Olejnik E. Pałka P. Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting Archives of Foundry Engineering Composite steel casting TiC-reinforced cast steel GTAW surface remelting |
| title | Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting |
| title_full | Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting |
| title_fullStr | Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting |
| title_full_unstemmed | Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting |
| title_short | Microstructure Characteristic of TiCReinforced Cast Steel after GTAW Remelting |
| title_sort | microstructure characteristic of ticreinforced cast steel after gtaw remelting |
| topic | Composite steel casting TiC-reinforced cast steel GTAW surface remelting |
| url | http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0148/afe-2017-0148.xml?format=INT |
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