Identification of mould influence on columnar-to-equiaxial-transition zone position in Al-Si alloys castings

• Autorzy: Ignaszak Z. , Hajkowski J.
• Języki publikacji: EN

Abstrakty

EN

The course of process validation of CAFE-Calcosoft (ESI-Group) models was presented. It was shown the short description of Cellular Automaton Finite Element (CAFE-3D) method which was applied to system to solidification process identification and to predict the structure of chosen Al-Si alloy. It was determined the sensitivity of thermal model and model to forecast the microstructure on the variability of particular parameters applied to the models taking into consideration the columnar-to-equiaxed transition (CET) zone. The cylindrical casts which solidified in homogenous silica (quartz-Q) sand mould (A) and also in high insulation (HI) mould with chill (B) which coerces high axial temperature gradient, was investigated. The experiment gave the basis to the validation test of CAFE model considering the CET zone which was preceded by two corresponding cases of solidification in respect to thermal conditions of cast-mould system. The virtual structures of studied casts were compared with real structures. It was shown the satisfactory agreement of both structures.

Słowa kluczowe

EN

Al-Si alloy casting; cellular automation; columnar-to-equiaxed transition (CET); model validation; microstructure

PL

stopy Al-Si; walidacja modelu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 3s
• Strony: 127--133
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Ignaszak Z.

• Poznan University of Technology, CAD/CAE Laboratory of Materials Technology in Institute of Material Technology, 3 Piotrowo St, 60-965 Poznan, Poland

autor

Hajkowski J.

• Poznan University of Technology, CAD/CAE Laboratory of Materials Technology in Institute of Material Technology, 3 Piotrowo St, 60-965 Poznan, Poland

Bibliografia

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