参考文献 (1)K.Rdhakrishna,S.Seshan,M.R.Seshard:Dendrite Arm spacing in Aluminum Alloy Castings,<AFS Trans.Vol 80,(1980) (2)T.Z.Kattamis,J.C.Coughlin and M.C.Flemings:Influence of Coarsening on dendrite Arm Spacing of Aluminum-Copper alloys. Trans.AIME>1239(1967),1504. (3)J.J.Reeves and T.Z.Kattamris:A model for isothermal dendritic coarsening <Scripta metallugica>5 (1971)1223. (4)Kuang-Ho Chien and T.Z.Kattamis:Role of dendritic Coarse- ning and Coalescence in the establishment of cast microstructure (Z.Metallkde>61 (1970)475 (5)P.W.Peterson,T.Z.kattamis and A.F.Giamei:Coarsening Kine- tics during Solidificatian of Ni-Al-Ta dendritic monocrysials (Metall.Trans.>11A (1980)1059. b (6)A.A.Chernov Kristallografiya,1956,1,583. 〔7)森信幸；大城桂作；松田公扶，日本金属学会志，40卷(1976)，406. The Influence of Solute Contents on Secondary Dendrite Arm Spacings for Multicomponent Alloys* Han Qingyou,Hu Hanqi Abstract The mathematical models for secondary dendrite arm isothermal coa- ening kinetics are developed for multicomponent.alloys on the basis of four physical models previously proposed.Calculations based on these models show qualitive agreement with experiment conducted by Nobuy- uki Moriet on Al-Cu-Si,Al-Cu-Fe and Al-Cu-Mn alloys.It shows that the increasing of solute contents favors the thinning of secondary dendrite arms under the condition that the local solidification times are kept constant for multicomponent alloys during solidification processing. *Projects Supported by the Science Fund of the Chinese Acade- my of Sciences 11〔 〕 〔 〕 〔 〕 〔 〕 〔 〕 〔 〕 〔 〕 参 考 文 献 ， ， ， ， ， 一 ， 一 一 ， 一 一 一 ， ， ， 森信幸 ， 大城桂 作 松 田 公扶 ， 日本金 属学 会志 ， 卷 ， 阅 朴 ， 一 丁 一 一 ， 一 一 一 一 丁 。 扛