Prediction of phase segregation during mold filling of semi-solid slurries
Küçük Resim Yok
Tarih
1999
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ASME, Fairfield, NJ, United States
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Phase segregation during the mold filling of semi-solid slurry (Sn-15%Pb) is numerically investigated under non-isothermal conditions. The effects of operating parameters on the phase segregation including inlet velocity, initial solid fraction, heat transfer rate, mold geometry are considered. The semi-solid slurry is considered a non-Newtonian fluid below a critical solid fraction (fcr) and a viscoplastic medium saturated with liquid phase above the critical solid fraction. A group of particles are introduced at the mold inlet and phase segregation is studied by following the trajectories of these particles. The sharp property change at the slurry air interface is resolved with Van Leer numerical method. It is found that phase segregation is significantly affected by processing parameter. The segregation decreases with high inlet velocity, low heat transfer rate from the mold wall and cylindrical mold geometry.
Açıklama
ASME
The Science, Automation, and Control of Material Processes involving Coupled Transport and Rheology Changes - 1999 (The ASME International Mechanical Engineering Congress and Exposition) -- 14 November 1999 through 19 November 1999 -- Nashville, TN, USA -- 56789
The Science, Automation, and Control of Material Processes involving Coupled Transport and Rheology Changes - 1999 (The ASME International Mechanical Engineering Congress and Exposition) -- 14 November 1999 through 19 November 1999 -- Nashville, TN, USA -- 56789
Anahtar Kelimeler
Kaynak
American Society of Mechanical Engineers, Materials Division (Publication) MD
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
89
