利用气体雾化方法研究了Cu-20%Co(质量分数)合金的快速凝固行为,获得了富Co相以微细球形粒子形式分布于基体的合金粉末.建立了Cu-Co雾化液滴快速凝固过程模型,模拟分析了雾化液滴凝固的动力学细节.结果表明:所建模型能很好地描述Cu-Co合金雾化液滴冷却凝固过程;液一液相变过程中组织演变是弥散相液滴形核、长大,碰撞凝并和空间迁移共同作用的结果;雾化液滴尺寸越大,冷却越慢,富Co相液滴的形核速率越低,凝固后富Co相的弥散度越差.
参考文献
[1] | Nakagawa Y.Acta Metall,1958; 6:704 |
[2] | Elderrandall S P,Munitz A,Abbaschian R.Mater Sci Forum,1989; 50:137 |
[3] | Munitz A,Elderrandall S P,Abbaschian R.Metall Mater Trans,1992; 23A:1817 |
[4] | Munitz A,Abbaschian R.Metall Mater Trans,1996; 27A:4049 |
[5] | Munitz A,Abbaschian R.J Mater Sci,1998; 33:3639 |
[6] | Yamauchi I,Ueno N,Shimaoka M,Ohnaka I.J Mater Sci,1998; 33:371 |
[7] | Cao C D,Gorler G P,Herlach D M,Wei B.Mater Sci Eng,2002; A325:503 |
[8] | Wilde G,Perepezko J H.Acta Mater,1999; 47:3009 |
[9] | Busch R,Gartner F,Botchers C,Haasen P,Bormann R.Acta Metall Mater,1995; 43:3467 |
[10] | Li D,Robinson M B,Rathz T J,Williams G.Mater Lett,1998; 36:152 |
[11] | Lu Q Q,Fontaine J R,Aubertin G.Int J Heat Mass Transfer,1993; 36:79 |
[12] | Clif R,Grace J R,Weber M E.Bubbles,Drops and Particles.New York:Academic Press,1978:111 |
[13] | Ranz W E,Marshall W R.Chem Eng Prog,1952; 48:141 |
[14] | Zhao J Z,Ratke L,Jia J,Li Q C.J Mater Sci Technol,2002; 18:197 |
[15] | Catalina A V,Mukherjee S,Stefanescu D M.Metall Mater Trans,1999; 31A:2559 |
[16] | Zhao J Z,Ratke L,Feuerbacher B.Modelling Simul Mater Sci Eng,1998; 6:123 |
[17] | Granasy L,Ratke L.Scr Metall Mater,1993; 28:1329 |
[18] | Lehtinen K E J,Zachariah M R.J Colliod Interface Sci,2001; 242:314 |
[19] | Zhao J Z,Kolbe M,Li H L,Gao J R,Ratke L.Metall Mater Trans,2007; 38A:1162 |
[20] | Falk F.In:Ratke L ed.,Immiscible Metals and Organics,DGM-Informationsgesellschaft,Oberursel,Germany,1993:93 |
[21] | Nachtrieb H.Adv Phys,1967; 16:309 |
[22] | Larsson S J,Roxbergh C,Lodding A.Phys Chem Liq,1972; 3:137 |
[23] | Swalin R A.Acta Metall,1959; 7:736 |
[24] | Leak V G,Swalin R A.Trans Metall Soc AIME,1964;230:426 |
[25] | Swalin R A,Leak V G.Acta Metall,1965; 13:471 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%