Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating
Liquid-state bonding is one of the most crucial methods in joining dissimilar materials to manufacture composites with structural design. The high chromium gray cast iron (HCGCI)/low carbon steel (LCS) composite structure is attractive in mining industries due to its superior mechanical properties a...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424025948 |
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| author | Zelin Yan Shuang Liu Yingfan Zhao Xiangpeng Chang Weiping Tong |
| author_facet | Zelin Yan Shuang Liu Yingfan Zhao Xiangpeng Chang Weiping Tong |
| author_sort | Zelin Yan |
| collection | DOAJ |
| description | Liquid-state bonding is one of the most crucial methods in joining dissimilar materials to manufacture composites with structural design. The high chromium gray cast iron (HCGCI)/low carbon steel (LCS) composite structure is attractive in mining industries due to its superior mechanical properties and low density. However, the decarburization of the faying surface of HCGCI leads to the formation of a coarse-grained brittle interlayer between HCGCI and LCS which seriously deteriorates the mechanical properties of welded joints. In this work, high chromium gray cast iron/low carbon steel composite was fabricated by diffusion bonding via graphite coating layer. The results showed that the graphite coating on the fusion surfaces prevented the decarburization of HCGCI and the growth of coarse grains which improved the bonding quality. The ultimate tensile strength and total elongation of the graphite-free sample are 335.6 MPa and 8.9%, respectively. In contrast, the ultimate tensile strength and total elongation of the graphite-contain sample are 435.6 MPa and 17.9%, separately. This work opens a new strategy for fabricating high chromium gray cast iron/low carbon steel composite, and the flexibility to achieve complex structures through liquid-state bonding is extended. |
| format | Article |
| id | doaj-art-c2d3d3ce6a3947c5b1aa048b595c3ca3 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c2d3d3ce6a3947c5b1aa048b595c3ca32024-12-26T08:55:26ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013372067215Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coatingZelin Yan0Shuang Liu1Yingfan Zhao2Xiangpeng Chang3Weiping Tong4Key Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang, 110819, ChinaCorresponding author.; Key Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang, 110819, ChinaLiquid-state bonding is one of the most crucial methods in joining dissimilar materials to manufacture composites with structural design. The high chromium gray cast iron (HCGCI)/low carbon steel (LCS) composite structure is attractive in mining industries due to its superior mechanical properties and low density. However, the decarburization of the faying surface of HCGCI leads to the formation of a coarse-grained brittle interlayer between HCGCI and LCS which seriously deteriorates the mechanical properties of welded joints. In this work, high chromium gray cast iron/low carbon steel composite was fabricated by diffusion bonding via graphite coating layer. The results showed that the graphite coating on the fusion surfaces prevented the decarburization of HCGCI and the growth of coarse grains which improved the bonding quality. The ultimate tensile strength and total elongation of the graphite-free sample are 335.6 MPa and 8.9%, respectively. In contrast, the ultimate tensile strength and total elongation of the graphite-contain sample are 435.6 MPa and 17.9%, separately. This work opens a new strategy for fabricating high chromium gray cast iron/low carbon steel composite, and the flexibility to achieve complex structures through liquid-state bonding is extended.http://www.sciencedirect.com/science/article/pii/S2238785424025948CompositeDiffusion bondingMicrostructureMechanical properties |
| spellingShingle | Zelin Yan Shuang Liu Yingfan Zhao Xiangpeng Chang Weiping Tong Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating Journal of Materials Research and Technology Composite Diffusion bonding Microstructure Mechanical properties |
| title | Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating |
| title_full | Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating |
| title_fullStr | Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating |
| title_full_unstemmed | Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating |
| title_short | Enhanced interfacial joining strength of joined high chromium gray cast iron/low carbon steel joint via graphite coating |
| title_sort | enhanced interfacial joining strength of joined high chromium gray cast iron low carbon steel joint via graphite coating |
| topic | Composite Diffusion bonding Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424025948 |
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