A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy
In this study, we investigated the effects of treating Al-12 wt% silicon alloy with an equimolar composition mixture of NaCl, KCl, and NaF on various aspects of the alloy’s properties. Key findings of the research indicate that the flux treatment had significant effects on the alloy. It led to incre...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad135b |
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| author | Vijeesh Vijayan Ashish Shetty Pradeep B N Shivashankarayya Hiremath Pawan Kumar Vishwanatha H M |
| author_facet | Vijeesh Vijayan Ashish Shetty Pradeep B N Shivashankarayya Hiremath Pawan Kumar Vishwanatha H M |
| author_sort | Vijeesh Vijayan |
| collection | DOAJ |
| description | In this study, we investigated the effects of treating Al-12 wt% silicon alloy with an equimolar composition mixture of NaCl, KCl, and NaF on various aspects of the alloy’s properties. Key findings of the research indicate that the flux treatment had significant effects on the alloy. It led to increased nucleation temperatures and reduced undercooling, thereby facilitating nucleation sites and grain refinement. Additionally, the inclusion of flux reduced the entrapment of inclusions in the melt, which can potentially enhance the mechanical properties of the alloy. However, it also led to a larger and more widely distributed gas porosity in the solidified samples, as gas evolved from the flux trapped during solidification. Moreover, the flux treatment had noticeable impacts on the morphology of eutectic silicon particles, reducing their aspect ratio. These findings offer valuable insights into the potential benefits and challenges of sodium-based flux melt treatment in optimizing the quality of Al-12Si alloy castings, particularly in die-casting applications. |
| first_indexed | 2024-03-08T23:07:51Z |
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| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-08T23:07:51Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
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| series | Materials Research Express |
| spelling | doaj.art-d5f0c63ccd214d17b726975406cfb57e2023-12-15T10:44:20ZengIOP PublishingMaterials Research Express2053-15912023-01-01101212650610.1088/2053-1591/ad135bA comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloyVijeesh Vijayan0Ashish Shetty1Pradeep B N2Shivashankarayya Hiremath3Pawan Kumar4Vishwanatha H M5https://orcid.org/0000-0003-3045-9771Nitte ( Deemed to be University ), NMAM Institute of Technology (NMAMIT), Department of Mechanical Engineering, Nitte, 574110, IndiaNitte ( Deemed to be University ), NMAM Institute of Technology (NMAMIT), Department of Mechanical Engineering, Nitte, 574110, IndiaNitte ( Deemed to be University ), NMAM Institute of Technology (NMAMIT), Department of Mechanical Engineering, Nitte, 574110, IndiaDepartment of Mechatronics, Manipal Institute of Technology, Manipal, Manipal Academy of Higher Education , Manipal, 576104, IndiaUniversity of Johannesburg, Faculty of Engineering and the Built Environment, Department of Engineering Metallurgy, John Orr Building, DFC, 25 Louisa St, Doornfontein, Johannesburg, 2028, South AfricaDepartment of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal, Manipal Academy of Higher Education , Manipal, 576104, IndiaIn this study, we investigated the effects of treating Al-12 wt% silicon alloy with an equimolar composition mixture of NaCl, KCl, and NaF on various aspects of the alloy’s properties. Key findings of the research indicate that the flux treatment had significant effects on the alloy. It led to increased nucleation temperatures and reduced undercooling, thereby facilitating nucleation sites and grain refinement. Additionally, the inclusion of flux reduced the entrapment of inclusions in the melt, which can potentially enhance the mechanical properties of the alloy. However, it also led to a larger and more widely distributed gas porosity in the solidified samples, as gas evolved from the flux trapped during solidification. Moreover, the flux treatment had noticeable impacts on the morphology of eutectic silicon particles, reducing their aspect ratio. These findings offer valuable insights into the potential benefits and challenges of sodium-based flux melt treatment in optimizing the quality of Al-12Si alloy castings, particularly in die-casting applications.https://doi.org/10.1088/2053-1591/ad135bAl-12Si alloysodium-based flux melt treatmentcooling curve analysisfluidityinclusionsporosity |
| spellingShingle | Vijeesh Vijayan Ashish Shetty Pradeep B N Shivashankarayya Hiremath Pawan Kumar Vishwanatha H M A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy Materials Research Express Al-12Si alloy sodium-based flux melt treatment cooling curve analysis fluidity inclusions porosity |
| title | A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy |
| title_full | A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy |
| title_fullStr | A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy |
| title_full_unstemmed | A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy |
| title_short | A comprehensive analysis of cooling curves, fluidity, inclusions, porosity, and microstructure of NaCl-KCl-NaF flux treated Al-12Si alloy |
| title_sort | comprehensive analysis of cooling curves fluidity inclusions porosity and microstructure of nacl kcl naf flux treated al 12si alloy |
| topic | Al-12Si alloy sodium-based flux melt treatment cooling curve analysis fluidity inclusions porosity |
| url | https://doi.org/10.1088/2053-1591/ad135b |
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