PREDICTION OF PHASE SEGREGATION DURING MOLD FILLING OF SEMI-SOLID SLURRIES
Küçük Resim Yok
Tarih
1999
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Society of Mechanical Engineers (ASME)
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Phase segregation during the mold filling of semisolid 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 (fa-) 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. © 1999 American Society of Mechanical Engineers (ASME). All rights reserved.
Açıklama
American Society of Mechanical Engineers (ASME)
ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999 -- 14 November 1999 through 19 November 1999 -- Nashville -- 176006
ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999 -- 14 November 1999 through 19 November 1999 -- Nashville -- 176006
Anahtar Kelimeler
Binary alloys, Finite volume method, Molds, Non Newtonian flow, Numerical methods, Phase interfaces, Phase separation, Segregation (metallography), Slurries, Tin alloys, Two phase flow, Heat transfer rate, Inlet velocity, Mold-filling, Mould geometries, Non-isothermal condition, Operating parameters, Phase segregations, Semisolid slurries, Solids fraction, Viscoplastic, Heat transfer
Kaynak
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
1999-AE
