。718 北京科技大学学报 第31卷 1.0r 1.0r a) (b) -1160℃ 0.8 +1190℃ 0.8 二160E 0.6 0.6 04 0.4 02 02 20h 40h 50 100150200250300350400 50 100150200250300350400 枝晶间距/μm 枝晶间距/山m 10 1.0 (e) d 0.8L -1160℃ 0.8- —1160℃ +1190℃ 6 +1190℃ 0.6 0.2 0.2 60h 80h 0 100150200250300350400 0 100150200250300350400 枝晶间距/um 枝晶间距/um 图6GH105合金Ti元素残余偏析指数与枝品间距的关系.均匀化处理：(a)20h:(b)40h(c)60h:(d)80h Fig 6 Relationship betw een the residual segregation coefficient of Ti and the dendritic distance of GH105 ingots:(a)20h homogenizing treat- ment;(b)40h homogenizing treatment;(e)60h homogerizing treatment (d)8 h homogenizing treatment (3)均匀化扩散动力学方程的计算结果与实验 行为.金属学报，200339(1)：27) 结果基本符合，在预测和评价GH105合金均匀化工 [6 Xiong Y H.Li PJ Yarg A M,et al.Effects of foundry vari- ables and refiners on structures of superalloy K4169.Acta Metall 艺上是可行的：利用残余偏析指数模型表征均匀化 Sim2002.38(5):534 过程的理论计算和实际结果存在一定误差. (熊玉华李培杰。杨爱民，等.铸造工艺参数和细化剂对 K4169高温合金铸态组织的影响.金属学报。2002.38(5)： 参考文献 534) [1]Ye J.Ni-based Supera lloys of America.Beijing:Science Press. [7 Kearsey R M,Beddoes JC.Jones P.et al.Compositional design 1978:586 considerations for microsegregation in single crystal superalloy sys (治军.美国镍基高温合金.北京：科学出版社.1978：586) tems.Intermetallics.2004.12:903 [2]Huang Q Y.LiH K.Superalloys.Beijng:Metallurgical Indus- 8 Zhong B Y.In vestigation on Segregation Behavior of Elements try Press 2000 in Waspaloy and GH105 Dissertation].Beijing University of (黄乾尧李汉康.高温合金.北京：治金工业出版社.2000) Science and Technology Beijing,2007 3]Xu C F,Zhou L B.Alloy Steels and Superalloys.Beijing:Bei- (仲博颖.W aspaloy和GH105合金元素偏析行为的研充学位 hang University Press 1993 论刘.北京：北京科技大学，2007) (许昌滏周鹿宾。合金钢与高温合金.北京：北京航空航天大 [9 Tian YL Wang L.Dong J X.et al.Microsegregation of GH742 学出版社.1993) ingot and the element distribution during homogenizing teatment. [4]Li JG.Yu JJ.Zhao N R.et al.Micmsegregation behavior of a Rare Met Mater Eng.2006 35(8):1315 nickeHbase superalby.J Iron Steel Res,2003.15(增f刊1)：260 (田玉亮王玲，董建新等.GH742铸锭偏析及均匀化过程中 (李金国。于金江，赵乃仁，等。一种镍基高温合金的显微偏析 元素分布规律.稀有金属材料与工程200635(8)：1315) 行为.钢铁研究学报.2003,15(Suppl1):260) [10 Hilert A.Diffusion and Thermodynamics of Alloys.Beijing: [5] Sun X F.Yin F S LiJG,et al.Solidificat ion behavior of a cast Metallurgical Indistry Press.1999 nickeHbase superalby.Acta Metall Sin.2003,39(1):27 (田止tA.合金扩散和热力学.北京：治金工业出版社. (孙晓峰.殷风仕，李金国。等。一种铸造镍基高温合金的凝固 1999)图 6 GH105 合金 Ti 元素残余偏析指数与枝晶间距的关系.均匀化处理:(a)20 h;(b)40 h;(c)60 h;(d)80 h Fig.6 Relationship betw een the residual segregation coefficient of Ti and the dendritic dist ance of GH105 ingots:(a)20 h homogenizing treat￾ment ;(b)40 h homogenizing treatment ;(c)60 h homogenizing treatment;(d)80 h homogenizing treatment (3)均匀化扩散动力学方程的计算结果与实验 结果基本符合, 在预测和评价 GH105 合金均匀化工 艺上是可行的;利用残余偏析指数模型表征均匀化 过程的理论计算和实际结果存在一定误差. 参 考 文 献 [ 1] Ye J.Ni-based S upera lloys of Ameri ca.Beijing :Science Press, 1978:586 (冶军.美国镍基高温合金.北京:科学出版社, 1978:586) [ 2] Huang Q Y , Li H K.S upera lloys.Beijing :Met allurgical Indus￾try Press, 2000 (黄乾尧, 李汉康.高温合金.北京:冶金工业出版社, 2000) [ 3] Xu C F, Zhou L B .Alloy St eels and S uperalloys.Beijing :Bei￾hang University Press, 1993 (许昌滏, 周鹿宾.合金钢与高温合金.北京:北京航空航天大 学出版社, 1993) [ 4] Li J G , Yu J J , Zhao N R, et al.Microsegregation behavior of a nickel-base superalloy .J Iron S teel Res ,2003 , 15(增刊 1):260 (李金国, 于金江, 赵乃仁, 等.一种镍基高温合金的显微偏析 行为.钢铁研究学报, 2003 , 15(Suppl 1):260) [ 5] Sun X F , Yin F S , Li J G , et al.S olidifi cation behavior of a cast nickel-base superalloy .Acta Metall S in , 2003 , 39(1):27 (孙晓峰, 殷凤仕, 李金国, 等.一种铸造镍基高温合金的凝固 行为.金属学报, 2003 , 39(1):27) [ 6] Xiong Y H , Li P J, Yang A M , et al.Eff ects of foundry vari￾ables and refiners on structures of superalloy K4169.Acta Metall S in , 2002 , 38(5):534 (熊玉华, 李培杰, 杨爱民, 等.铸造工艺参数和细化剂对 K4169高温合金铸态组织的影响.金属学报, 2002 , 38(5): 534) [ 7] Kearsey R M , Beddoes J C , Jones P , et al.Compositional design considerations f or microsegregation in single cryst al superalloy sys￾tems.Intermetallics, 2004 , 12:903 [ 8] Zhong B Y .In vestigation on Segregation Behavior of Elements in Waspaloy and GH105 [ Dissert ation] .Beijing:University of Science and Technology Beijing , 2007 (仲博颖.Waspaloy 和 GH105合金元素偏析行为的研究[ 学位 论文] .北京:北京科技大学, 2007) [ 9] Tian Y L , Wang L , Dong J X, et al.Microsegregation of GH742 ingot and the element distribution during homogenizing treatment . Rare Met Mater Eng , 2006 , 35(8):1315 (田玉亮, 王玲, 董建新, 等.GH742 铸锭偏析及均匀化过程中 元素分布规律.稀有金属材料与工程, 2006 , 35(8):1315) [ 10] Hillert A .Dif fusion and Thermodynamics of Alloys.Beijing : Met allurgi cal Industry Press, 1999 (Hillert A.合金扩散和热力学.北京:冶金工业出版社, 1999) · 718 · 北 京 科 技 大 学 学 报 第 31 卷