Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions
To evaluate the lubrication capacity and flaking behavior of mold slag during continuous casting, the contact angle and spreading of CaO-SiO2 and CaO-Al2O3-based mold slags on solid substrates of three steel grades were investigated systematically by the sessile drop technique. The optical basicity...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420313090 |
| _version_ | 1818056381562880000 |
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| author | Huazhi Yuan Zengkun Dan Qiangqiang Wang Shengping He |
| author_facet | Huazhi Yuan Zengkun Dan Qiangqiang Wang Shengping He |
| author_sort | Huazhi Yuan |
| collection | DOAJ |
| description | To evaluate the lubrication capacity and flaking behavior of mold slag during continuous casting, the contact angle and spreading of CaO-SiO2 and CaO-Al2O3-based mold slags on solid substrates of three steel grades were investigated systematically by the sessile drop technique. The optical basicity and viscosity were combined to clarify the relationship between melt structure and contact angle, and the Mills’ model was used to determine the work of adhesion of mold slags on steel substrates. The primary results indicated that an increasing content of Al and Mn in steel was favorable for decreasing the contact angles. The wettability of the mold slags was related to the network structure, where a more complex network structure, correlated with a larger contact angle on the solid steel surface. The separation of the low-reactive or non-reactive mold slags from the solidified shell was more difficult than that of the CaO-SiO2-based mold slags. Considering the contact angles and works of adhesion, the developed low-reactive or non-reactive mold slags could present both satisfactory lubricating capacity and flaking behavior from the strand surface. |
| first_indexed | 2024-12-10T12:27:56Z |
| format | Article |
| id | doaj.art-af439897f4424884bc36d37ce896f191 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-10T12:27:56Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-af439897f4424884bc36d37ce896f1912022-12-22T01:48:54ZengElsevierJournal of Materials Research and Technology2238-78542020-07-019478287837Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositionsHuazhi Yuan0Zengkun Dan1Qiangqiang Wang2Shengping He3College of Materials Science and Engineering, and Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, and Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing 400044, ChinaCorresponding author.; College of Materials Science and Engineering, and Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, and Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing 400044, ChinaTo evaluate the lubrication capacity and flaking behavior of mold slag during continuous casting, the contact angle and spreading of CaO-SiO2 and CaO-Al2O3-based mold slags on solid substrates of three steel grades were investigated systematically by the sessile drop technique. The optical basicity and viscosity were combined to clarify the relationship between melt structure and contact angle, and the Mills’ model was used to determine the work of adhesion of mold slags on steel substrates. The primary results indicated that an increasing content of Al and Mn in steel was favorable for decreasing the contact angles. The wettability of the mold slags was related to the network structure, where a more complex network structure, correlated with a larger contact angle on the solid steel surface. The separation of the low-reactive or non-reactive mold slags from the solidified shell was more difficult than that of the CaO-SiO2-based mold slags. Considering the contact angles and works of adhesion, the developed low-reactive or non-reactive mold slags could present both satisfactory lubricating capacity and flaking behavior from the strand surface.http://www.sciencedirect.com/science/article/pii/S2238785420313090Contact angleMold slagSolid steelWork of adhesion |
| spellingShingle | Huazhi Yuan Zengkun Dan Qiangqiang Wang Shengping He Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions Journal of Materials Research and Technology Contact angle Mold slag Solid steel Work of adhesion |
| title | Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions |
| title_full | Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions |
| title_fullStr | Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions |
| title_full_unstemmed | Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions |
| title_short | Contact angle and adhesion of CaO-SiO2- and CaO-Al2O3-based mold slags on solid steel of various compositions |
| title_sort | contact angle and adhesion of cao sio2 and cao al2o3 based mold slags on solid steel of various compositions |
| topic | Contact angle Mold slag Solid steel Work of adhesion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420313090 |
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