TY - JOUR
T1 - Solute redistribution and segregation in solidification processes
AU - Jie, Wanqi
PY - 2001/3
Y1 - 2001/3
N2 - In this review paper, research on solute redistribution coefficients for equilibrium, near equilibrium and non-equilibrium solidification processes were first analyzed. Then, different models advanced since the 1950s for solute redistribution during the directional solidification process with a planar interface were summarized. The so-called second-order opposite diffusion compensation method (SODCM) presented by the author was described in detail. Thirdly, solute redistribution in the dendritic solidification process and the segregation were discussed. It is concluded that the problem can be described resulting φS -WL functions. Among the different models, that obtained by the present author in 1994 was explained. Fourthly, the formation of macro-segregation mainly caused by liquid flow in the mushy zone is analyzed. A parameter about the driving force for the liquid flow is described. The parameter is considered to be the controlling parameter for the formation of macro-segregation. The relationship between the parameter and the compositions in steel is also given in the paper as an example.
AB - In this review paper, research on solute redistribution coefficients for equilibrium, near equilibrium and non-equilibrium solidification processes were first analyzed. Then, different models advanced since the 1950s for solute redistribution during the directional solidification process with a planar interface were summarized. The so-called second-order opposite diffusion compensation method (SODCM) presented by the author was described in detail. Thirdly, solute redistribution in the dendritic solidification process and the segregation were discussed. It is concluded that the problem can be described resulting φS -WL functions. Among the different models, that obtained by the present author in 1994 was explained. Fourthly, the formation of macro-segregation mainly caused by liquid flow in the mushy zone is analyzed. A parameter about the driving force for the liquid flow is described. The parameter is considered to be the controlling parameter for the formation of macro-segregation. The relationship between the parameter and the compositions in steel is also given in the paper as an example.
KW - Segregation
KW - Solidification process
KW - Solute redistribution
UR - http://www.scopus.com/inward/record.url?scp=0345878454&partnerID=8YFLogxK
U2 - 10.1016/S1468-6996(01)00022-5
DO - 10.1016/S1468-6996(01)00022-5
M3 - 文章
AN - SCOPUS:0345878454
SN - 1468-6996
VL - 2
SP - 29
EP - 35
JO - Science and Technology of Advanced Materials
JF - Science and Technology of Advanced Materials
IS - 1
ER -