Thermo-Calc based multi-component micro-segregation model and solidification paths calculations
On the basis of a multi-length scale modeling, a mixture-averaged multi-component /multiphase micro-segregation model was proposed without pre-set function for the micro-scale solute profile. The model explains the effect of morphologies of solidifying phases and solid back diffusion (SBD) on segreg...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2012-08-01
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| Series: | China Foundry |
| Subjects: | |
| Online Access: | http://www.foundryworld.com/uploadfile/2012082742185305.pdf |
| _version_ | 1818791599977529344 |
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| author | Zhao Guangwei Li XinZhong Xu Daming |
| author_facet | Zhao Guangwei Li XinZhong Xu Daming |
| author_sort | Zhao Guangwei |
| collection | DOAJ |
| description | On the basis of a multi-length scale modeling, a mixture-averaged multi-component /multiphase micro-segregation model was proposed without pre-set function for the micro-scale solute profile. The model explains the effect of morphologies of solidifying phases and solid back diffusion (SBD) on segregation, and covers the two limiting solidification cases of Scheil and Lever-rule models. A commercial Thermo-Calc software package/database was linked to the algorithms via its TQ6-interface for instantaneous determination of the related thermodynamic data of the multi-component alloys. The influences of cooling rate and other parameters on the solidification path and micro-segregation behavior were numerically investigated by sample calculation of the ternary Al-Cu-Mg alloys. A parallel experimental investigation on Al-Cu-Si alloys solidified under different cooling conditions was conducted to validate the theoretical model. Reasonable agreements were gained between the predicted solidification paths and the measured results. |
| first_indexed | 2024-12-18T15:13:55Z |
| format | Article |
| id | doaj.art-3754976a1d2d45279760417f70fe6c8b |
| institution | Directory Open Access Journal |
| issn | 1672-6421 |
| language | English |
| last_indexed | 2024-12-18T15:13:55Z |
| publishDate | 2012-08-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-3754976a1d2d45279760417f70fe6c8b2022-12-21T21:03:35ZengFoundry Journal AgencyChina Foundry1672-64212012-08-0193269274Thermo-Calc based multi-component micro-segregation model and solidification paths calculationsZhao GuangweiLi XinZhongXu DamingOn the basis of a multi-length scale modeling, a mixture-averaged multi-component /multiphase micro-segregation model was proposed without pre-set function for the micro-scale solute profile. The model explains the effect of morphologies of solidifying phases and solid back diffusion (SBD) on segregation, and covers the two limiting solidification cases of Scheil and Lever-rule models. A commercial Thermo-Calc software package/database was linked to the algorithms via its TQ6-interface for instantaneous determination of the related thermodynamic data of the multi-component alloys. The influences of cooling rate and other parameters on the solidification path and micro-segregation behavior were numerically investigated by sample calculation of the ternary Al-Cu-Mg alloys. A parallel experimental investigation on Al-Cu-Si alloys solidified under different cooling conditions was conducted to validate the theoretical model. Reasonable agreements were gained between the predicted solidification paths and the measured results.http://www.foundryworld.com/uploadfile/2012082742185305.pdfsolidification pathmicro-segregationmulti-component/multi-phase alloysthermo-Calc |
| spellingShingle | Zhao Guangwei Li XinZhong Xu Daming Thermo-Calc based multi-component micro-segregation model and solidification paths calculations China Foundry solidification path micro-segregation multi-component/multi-phase alloys thermo-Calc |
| title | Thermo-Calc based multi-component micro-segregation model and solidification paths calculations |
| title_full | Thermo-Calc based multi-component micro-segregation model and solidification paths calculations |
| title_fullStr | Thermo-Calc based multi-component micro-segregation model and solidification paths calculations |
| title_full_unstemmed | Thermo-Calc based multi-component micro-segregation model and solidification paths calculations |
| title_short | Thermo-Calc based multi-component micro-segregation model and solidification paths calculations |
| title_sort | thermo calc based multi component micro segregation model and solidification paths calculations |
| topic | solidification path micro-segregation multi-component/multi-phase alloys thermo-Calc |
| url | http://www.foundryworld.com/uploadfile/2012082742185305.pdf |
| work_keys_str_mv | AT zhaoguangwei thermocalcbasedmulticomponentmicrosegregationmodelandsolidificationpathscalculations AT lixinzhong thermocalcbasedmulticomponentmicrosegregationmodelandsolidificationpathscalculations AT xudaming thermocalcbasedmulticomponentmicrosegregationmodelandsolidificationpathscalculations |