Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds
According to the results of digitization of the experimental studies carried out in the past concerning Fe-C alloys solidification in cylindrical molds of castings with a carbon content of 0.04%, 0.1%, 0.4%, 0.93%, 1.42%; 2.44%, 3.28%, 4.45%, 4.83% and their subsequent interpolation in the range of...
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Polish Academy of Sciences
2024-12-01
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| Series: | Archives of Foundry Engineering |
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| Online Access: | https://journals.pan.pl/Content/133784/AFE%204_2024_21.pdf |
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| author | V. Khrychikov O. Semenov Y. Aftandiliants S. Gnyloskurenko T. Semenova H. Meniailo |
| author_facet | V. Khrychikov O. Semenov Y. Aftandiliants S. Gnyloskurenko T. Semenova H. Meniailo |
| author_sort | V. Khrychikov |
| collection | DOAJ |
| description | According to the results of digitization of the experimental studies carried out in the past concerning Fe-C alloys solidification in cylindrical molds of castings with a carbon content of 0.04%, 0.1%, 0.4%, 0.93%, 1.42%; 2.44%, 3.28%, 4.45%, 4.83% and their subsequent interpolation in the range of 0.04 ÷4.83% С there were obtained the curves of the advancement of the pour point, liquidus and solidus in the coordinates of the relative thickness of the solidified metal layer x/R and the parametric criterion τ/R2. Their usage is proposed for the development of modes of physical and chemical influence on the liquid metal in the axial zone of the casting after solidification of its calculated layer. Calculation of the mass of modifiers or deoxidizers for introduction into the axial zone was performed in relation to the total mass of metal in the liquid and liquid-solid zones of the casting. The technique for calculating the mass and time of introduction a graphitizing modifier into the axial zone of rolling rolls made of hypereutectoid steel with 1.7% C is proposed to reduce the negative impact of cementite, chromium and molybdenum carbides on the structure of the axial zone of the rolls. The obtained curves can also be used to assess the accuracy of computer modeling of the processes of Fe-C alloys solidification and further adaptation of mathematical models by the correction of thermophysical coefficients, the values of which are not always known in the liquidus-solidus temperature range. |
| format | Article |
| id | doaj-art-cfd4d8fbafbd40a19d8ef6879b3480d3 |
| institution | Kabale University |
| issn | 2299-2944 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj-art-cfd4d8fbafbd40a19d8ef6879b3480d32025-01-27T10:10:37ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442024-12-01vol. 24No 4163170https://doi.org/10.24425/afe.2024.153373Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical MoldsV. Khrychikov0https://orcid.org/0000-0002-8557-098XO. Semenov1https://orcid.org/0000-0002-2339-5856Y. Aftandiliants2https://orcid.org/0000-0001-5864-9855S. Gnyloskurenko3https://orcid.org/0000-0003-0201-7191T. Semenova4H. Meniailo5https://orcid.org/0000-0002-6874-7202Ukrainian State University of Science and Technologies, UkraineProgress-tech, UkraineNational University of Life and Environmental Sciences of UkrainePhysical and Technological Institute of Metals and Alloys, National Academy of Sciences of UkraineUkrainian State University of Science and Technologies, UkraineUkrainian State University of Science and Technologies, UkraineAccording to the results of digitization of the experimental studies carried out in the past concerning Fe-C alloys solidification in cylindrical molds of castings with a carbon content of 0.04%, 0.1%, 0.4%, 0.93%, 1.42%; 2.44%, 3.28%, 4.45%, 4.83% and their subsequent interpolation in the range of 0.04 ÷4.83% С there were obtained the curves of the advancement of the pour point, liquidus and solidus in the coordinates of the relative thickness of the solidified metal layer x/R and the parametric criterion τ/R2. Their usage is proposed for the development of modes of physical and chemical influence on the liquid metal in the axial zone of the casting after solidification of its calculated layer. Calculation of the mass of modifiers or deoxidizers for introduction into the axial zone was performed in relation to the total mass of metal in the liquid and liquid-solid zones of the casting. The technique for calculating the mass and time of introduction a graphitizing modifier into the axial zone of rolling rolls made of hypereutectoid steel with 1.7% C is proposed to reduce the negative impact of cementite, chromium and molybdenum carbides on the structure of the axial zone of the rolls. The obtained curves can also be used to assess the accuracy of computer modeling of the processes of Fe-C alloys solidification and further adaptation of mathematical models by the correction of thermophysical coefficients, the values of which are not always known in the liquidus-solidus temperature range.https://journals.pan.pl/Content/133784/AFE%204_2024_21.pdffe-c alloyssolidificationkineticspour pointmodificationaxial zoneliquid-solid |
| spellingShingle | V. Khrychikov O. Semenov Y. Aftandiliants S. Gnyloskurenko T. Semenova H. Meniailo Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds Archives of Foundry Engineering fe-c alloys solidification kinetics pour point modification axial zone liquid-solid |
| title | Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds |
| title_full | Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds |
| title_fullStr | Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds |
| title_full_unstemmed | Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds |
| title_short | Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds |
| title_sort | kinetics of solidification and crystallization of liquid axial zone of fe c alloys in cylindrical molds |
| topic | fe-c alloys solidification kinetics pour point modification axial zone liquid-solid |
| url | https://journals.pan.pl/Content/133784/AFE%204_2024_21.pdf |
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